UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C.  20549

                                     ------

                                    FORM 10-Q


        X         QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE
                          SECURITIES EXCHANGE ACT OF 1934
For  the  quarterly  period  ended   JUNE  30,  2005
                                     ---------------

                                       OR

             TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                        For the transition period from         to
                                                       -------    --------
                         Commission file number 0-14697


                             HARLEYSVILLE GROUP INC.
             (Exact name of registrant as specified in its charter)

                             DELAWARE                51-0241172
              (State or other jurisdiction of     (I.R.S. Employer
             incorporation or organization)     Identification No.)


                  355 MAPLE AVENUE, HARLEYSVILLE, PA 19438-2297
               (Address of principal executive offices) (Zip Code)
       Registrant's telephone number, including area code: (215) 256-5000


             Indicate  by  check  mark  whether the Registrant (1) has filed all
reports  required  to be filed by Section 13 or 15(d) of the Securities Exchange
Act  of 1934 during the preceding 12 months (or for such shorter period that the
Registrant  was  required to file such reports) and (2) has been subject to such
filing  requirements  for  the  past  90  days.  Yes X   No  .

             Indicate  by  check  mark  whether the Registrant is an accelerated
filer  (as  defined  in  Rule  12b-2  of  the  Act).  Yes X   No  .

             At July 28, 2005, 30,430,482 shares of common stock of Harleysville
Group  Inc.  were  outstanding.




Page 1


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

                                      INDEX


Page  Number
- ------------

Part I - Financial  Information

  Consolidated  Balance  Sheets  -
     June  30,  2005  and  December  31, 2004                             3

  Consolidated  Statements  of  Income  - For the
     three  months ended  June  30,  2005  and  2004                      4

  Consolidated  Statements  of  Income  -
     For  the  six  months ended  June  30,  2005  and  2004              5

  Consolidated  Statement  of  Shareholders'  Equity  -
     For  the six months ended  June  30,  2005                           6

  Consolidated  Statements  of  Cash  Flows  -
     For  the  six  months  ended  June  30,  2005  and  2004             7

  Notes  to  Consolidated  Financial  Statements                          8

  Management's  Discussion  and  Analysis  of  Financial
      Condition  and  Results  of  Operations                            15

  Quantitative  and  Qualitative Disclosure  About Market Risk           26

  Controls  and  Procedures                                              27


Part  II  -  Other  Information                                          28



Page 2


ITEM  1.  FINANCIAL  STATEMENTS

                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                        (in thousands, except share data)







                                                                    JUNE 30,       DECEMBER 31,
                                                                     2005             2004
                                                                 -----------       ------------
                                                                 (Unaudited)
ASSETS
                                                                             
Investments:
  Fixed maturities:
       Held to maturity, at amortized cost
         (fair value $497,802 and $517,434)                        $  483,369      $  499,487
       Available for sale, at fair value
         (cost $1,164,813 and $1,028,457)                           1,198,607       1,067,504
  Equity securities, at fair value
    (cost $110,988 and $110,495)                                      147,275         150,249
  Short-term investments, at cost,
    which approximates fair value                                      53,347         113,822
  Fixed maturity securities on loan:
       Held to maturity, at amortized cost
          (fair value $4,923 and $1,966)                                4,852           1,835
       Available for sale, at fair value
         (amortized cost $116,591 and $128,183)                       122,145         134,020
                                                                   ----------      ----------
             Total investments                                      2,009,595       1,966,917

Cash                                                                      355             328
Receivables:
  Premiums                                                            151,642         141,601
  Reinsurance (affiliate $349 and $390)                               170,356         193,209
  Accrued investment income                                            23,747          23,236
                                                                   ----------      ----------
           Total receivables                                          345,745         358,046

Deferred policy acquisition costs                                     106,092         100,755
Prepaid reinsurance premiums                                           32,174          32,675
Property and equipment, net                                            18,283          20,891
Deferred income taxes                                                  57,067          53,137
Securities lending collateral                                         130,634         139,486
Due from affiliate                                                      4,351
Other assets                                                           44,662          45,828
                                                                   ----------      ----------
              Total assets                                         $2,748,958      $2,718,063
                                                                   ==========      ==========
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
  Unpaid losses and loss settlement expenses
   (affiliate $181,431 and $187,172)                               $1,355,763      $1,317,735
  Unearned premiums (affiliate $46,899 and $47,038)                   458,667         441,697
  Accounts payable and accrued expenses                                84,047          99,098
  Securities lending obligation                                       130,634         139,486
  Debt (affiliate $18,500 and $18,500)                                119,060         119,625
  Due to affiliate                                                                     12,498
                                                                   ----------      ----------
           Total liabilities                                        2,148,171       2,130,139
                                                                   ----------      ----------
Shareholders' equity:
  Preferred stock, $1 par value, authorized
      1,000,000 shares; none issued
  Common stock, $1 par value, authorized
      80,000,000 shares; issued 31,739,809
      and 31,589,474 shares; outstanding
     30,341,900 and 30,191,565 shares                                  31,740          31,589
  Additional paid-in capital                                          164,395         161,689
  Accumulated other comprehensive income                               36,200          42,051
  Retained earnings                                                   393,480         377,282
  Deferred compensation                                                  (541)           (200)
  Treasury stock, at cost, 1,397,909 shares                           (24,487)        (24,487)
                                                                   ----------      ----------
           Total shareholders' equity                                 600,787         587,924
                                                                   ----------      ----------
           Total liabilities and shareholders' equity              $2,748,958      $2,718,063
                                                                   ==========      ==========

See accompanying notes to consolidated financial statements.






Page 3



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                        CONSOLIDATED STATEMENTS OF INCOME
                                   (UNAUDITED)

                FOR THE THREE MONTHS ENDED JUNE 30, 2005 AND 2004
                  (dollars in thousands, except per share data)








                                                                       2005            2004
                                                                      --------       --------
Revenues:
                                                                               
  Premiums earned from affiliate, (ceded to affiliate, $186,991
     and $183,619)                                                     $209,865      $207,652
  Investment income, net of investment expense                           22,578        21,437
  Realized investment gains, net                                             68            59
  Other income (affiliate $1,708 and $1,680)                              4,158         3,671
                                                                       --------      --------
            Total revenues                                              236,669       232,819
                                                                       --------      --------
Losses and expenses:
  Losses and loss settlement expenses (ceded to affiliate,
     $124,485 and $122,097)                                             143,997       148,711
  Amortization of deferred policy acquisition costs                      52,043        50,698
  Other underwriting expenses                                            18,778        19,726
  Interest expense (affiliate $177 and $84)                               1,665         1,566
  Other expenses                                                          1,763         1,266
                                                                       --------      --------
           Total expenses                                               218,246       221,967
                                                                       --------      --------
            Income before income taxes                                   18,423        10,852
Income taxes                                                              3,896         1,124
                                                                       --------      --------
            Net income                                                 $ 14,527      $  9,728
                                                                       ========      ========
Per common share:
  Basic earnings                                                       $    .48      $    .32
                                                                       ========      ========
  Diluted earnings                                                     $    .48      $    .32
                                                                       ========      ========
  Cash dividend                                                        $    .17      $    .17
                                                                       ========      ========

See accompanying notes to consolidated financial statements.




Page 4



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                        CONSOLIDATED STATEMENTS OF INCOME
                                   (UNAUDITED)

                 FOR THE SIX MONTHS ENDED JUNE 30, 2005 AND 2004
                  (dollars in thousands, except per share data)







                                                                           2005         2004
                                                                         --------     --------
Revenues:
                                                                                
  Premiums earned from affiliate, (ceded to affiliate, $370,441 and
     $364,795)                                                           $416,545     $414,600
  Investment income, net of investment expense                             44,339       43,079
  Realized investment gains, net                                               68       12,547
  Other income (affiliate $3,501 and $3,455)                                8,441        8,235
                                                                         --------     --------
            Total revenues                                                469,393      478,461
                                                                         --------     --------
Losses and expenses:
  Losses and loss settlement expenses (ceded to affiliate, $256,505
     and $261,782)                                                        291,865      299,821
  Amortization of deferred policy acquisition costs                       102,961      101,386
  Other underwriting expenses                                              35,133       39,364
  Interest expense (affiliate $308 and $168)                                3,285        3,143
  Other expenses                                                            3,270        2,685
                                                                         --------     --------
            Total expenses                                                436,514      446,399
                                                                         --------     --------
            Income before income taxes                                     32,879       32,062
Income taxes                                                                6,370        5,841
                                                                         --------     --------
            Net income                                                   $ 26,509     $ 26,221
                                                                         ========     ========
Per common share:
  Basic earnings                                                         $    .88     $    .88
                                                                         ========     ========
  Diluted earnings                                                       $    .87     $    .87
                                                                         ========     ========
  Cash dividend                                                          $    .34     $    .34
                                                                         ========     ========

See accompanying notes to consolidated financial statements.






Page 5



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                 CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                                   (UNAUDITED)

                     FOR THE SIX MONTHS ENDED JUNE 30, 2005
                             (dollars in thousands)






                                                         ACCUMULATED
                           COMMON STOCK      ADDITIONAL  OTHER
                        ------------------   PAID-IN     COMPREHENSIVE  RETAINED  DEFERRED       TREASURY
                        SHARES     AMOUNT    CAPITAL     INCOME         EARNINGS  COMPENSATION   STOCK      TOTAL
                        ---------- --------  ----------  -------------  --------  ------------   --------   -----
                                                                                   
Balance at
 December 31, 2004      31,589,474  $31,589  $161,689    $42,051        $377,282  $(200)        $(24,487)  $587,924
                                                                                                           --------
Net income                                                                26,509
Other comprehensive
 income, net of tax:
  Unrealized investment
   losses, net of
   reclassification
   adjustment                                             (5,851)                                            (5,851)
                                                                                                           --------

Comprehensive income                                                                                         20,658

Issuance of common stock   150,335      151     2,549                                                         2,700
Tax benefit from stock
 options exercised                                157                                                           157

Deferred compensation                                                              (341)                       (341)

Cash dividends                                                           (10,311)                           (10,311)
                        ----------  -------  --------    -------        --------  -----          --------   --------
Balance at
 June 30, 2005          31,739,809  $31,740  $164,395    $36,200        $393,480  $(541)        $(24,487)  $600,787
                        ==========  =======  ========    =======        ========  =====         ========   ========





See  accompanying  notes  to  consolidated  financial  statements.



Page 6



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (UNAUDITED)

                 FOR THE SIX MONTHS ENDED JUNE 30, 2005 AND 2004
                                 (in thousands)






                                                                    2005              2004
                                                                  --------          ---------
Cash flows from operating activities:
                                                                               
   Net income                                                     $  26,509         $  26,221
   Adjustments to reconcile net income
      to net cash provided by operating activities:
         Change in receivables, unearned  premiums and
              prepaid reinsurance balances                           29,772            (5,813)
         Change in affiliate balance                                (16,849)          (10,831)
         Increase in unpaid losses and loss settlement expenses      38,028            33,306
         Deferred income taxes                                         (779)              (32)
         Increase in deferred policy acquisition costs               (5,337)           (4,891)
         Amortization and depreciation                                2,737             2,727
         Gain on sale of investments                                    (68)          (12,547)
         Other, net                                                  (2,494)           (4,286)
                                                                  ---------         ---------
             Net cash provided by operating activities               71,519            23,854
                                                                  ---------         ---------
Cash flows from investing activities:
   Fixed maturity investments:
      Purchases                                                    (180,736)         (113,176)
      Sales or maturities                                            56,322           102,754
   Equity securities:
      Purchases                                                      (3,878)          (16,106)
      Sales                                                           3,401            16,491
   Net sales (purchases) of short-term investments                   60,475           (16,569)
   Sale (purchase) of property  and equipment, net                    1,507              (379)
                                                                  ---------         ---------
             Net cash used by investing activities                  (62,909)          (26,985)
                                                                  ---------         ---------
Cash flows from financing activities:
   Issuance of common stock                                           2,293             1,466
   Repayment of debt obligations                                       (565)             (520)
   Dividends paid (to affiliate, $5,781 and $5,781)                 (10,311)          (10,195)
                                                                  ---------         ---------
             Net cash used by financing activities                   (8,583)           (9,249)
                                                                  ---------         ---------
Increase (decrease) in cash                                              27           (12,380)
   Cash at beginning of period                                          328            13,430
                                                                  ---------         ---------
   Cash at end of period                                          $     355         $   1,050
                                                                  =========         =========


See accompanying notes to consolidated financial statements.







Page 7


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1  -  Basis  of  Presentation

            The financial information for the interim periods included herein is
unaudited;  however, such information reflects all adjustments which are, in the
opinion  of  management,  necessary  to  a  fair  presentation  of the financial
position,  results  of  operations, and cash flows for the interim periods.  The
results  of  operations  for  interim  periods are not necessarily indicative of
results  to  be  expected  for  the  full  year.

            These  financial  statements  should be read in conjunction with the
financial  statements and notes for the year ended December 31, 2004 included in
the  Company's  2004  Annual  Report  filed  with  the  Securities  and Exchange
Commission  on  Form  10-K.

            The  affiliate  transaction disclosures on the face of the financial
statements  are  in  regards  to transactions with Harleysville Mutual Insurance
Company (Mutual).  Mutual owns approximately 56% of the outstanding common stock
of  Harleysville  Group  Inc.  As  used  herein,  "Harleysville Group" refers to
Harleysville  Group  Inc.  and  its  subsidiaries.

Policy  Acquisition  Costs

            Policy  acquisition  costs,  such  as commissions, premium taxes and
certain  other underwriting and agency expenses that vary with and are primarily
related  to  the  production  of  business,  are deferred and amortized over the
effective  period  of  the  related  insurance policies and in proportion to the
premiums  earned.  The  method followed in computing deferred policy acquisition
costs  limits  the  amount  of such deferred costs to their estimated realizable
value.  The estimation of net realizable value takes into account the premium to
be  earned,  related  investment income over the claim paying period, losses and
loss settlement expenses, and certain other costs expected to be incurred as the
premium  is  earned.  Future changes in estimates, the most significant of which
is  expected  losses  and  loss  settlement expenses, may require adjustments to
deferred  policy  acquisition  costs.  If the estimation of net realizable value
indicates  that  the  acquisition  costs are unrecoverable, further analyses are
completed  to  determine if a reserve is required to provide for losses that may
exceed  the  related  unearned  premiums.

Stock-Based  Compensation

            Stock-based  compensation  plans  are  accounted  for  under  the
provisions  of Accounting Principles Board (APB) Opinion No. 25, "Accounting for
Stock  Issued  to  Employees,"  and  related  interpretations.  Accordingly,  no
compensation expense is recognized for fixed stock option grants and an employee
stock  purchase  plan.  Compensation  expense would be recorded on the date of a
stock  option  grant  only  if  the current market price of the underlying stock
exceeded  the exercise price.  The following table illustrates the effect on net
income  and  earnings  per  share as if the provisions of Statement of Financial
Accounting  Standards  (SFAS)  No. 123 (as amended by SFAS No. 148), "Accounting
for  Stock-Based  Compensation,"  had  been applied for the three and six months
ended  June  30,  2005  and  2004:


Page 8


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)






                                                    FOR THE THREE MONTHS         FOR THE SIX MONTHS
                                                      ENDED JUNE 30,              ENDED JUNE 30,

                                                     2005          2004            2005          2004
                                                    ------        ------          ------        ------
                                                        (in thousands, except  per share data)

                                                                                    

Net income, as reported                             $14,527       $9,728          $26,509       $26,221
Plus:
     Stock-based employee compensation
          expense (benefit) included in reported
          net income, net of related tax effects        (57)          11             (327)           54
Less:
     Total stock-based employee compensation
          expense determined under fair value
          based method for all awards, net of
          related tax effects                          (635)        (703)            (847)       (1,452)
                                                    -------       ------          -------       -------
Pro forma net income                                $13,835       $9,036          $25,335       $24,823
                                                    =======       ======          =======       =======

Basic earnings per share:
     As reported                                    $   .48       $  .32          $   .88       $   .88
     Pro forma                                      $   .46       $  .30          $   .84       $   .83

Diluted earnings per share:
     As reported                                    $   .48       $  .32          $   .87       $   .87
     Pro forma                                      $   .46       $  .30          $   .83       $   .83





            In  December  2004,  the Financial Accounting Standards Board issued
SFAS  No.  123(R),  "Shared-Based Payment," which is a revision of SFAS No. 123,
"Accounting  for  Stock-Based  Compensation."  SFAS  123(R)  requires  that  the
compensation  cost  related to share-based payment transactions be recognized in
financial  statements.  The compensation cost will be measured based on the fair
value of the equity or liability instruments issued.  The Statement is effective
as of the beginning of the first fiscal year beginning after June 15, 2005.  The
impact  of  adopting  SFAS  No. 123(R) is currently being evaluated.  The impact
that  any  future  share-based  payment  transactions will have on our financial
position  or  results  of  operations  is  not  yet  known.




Page 9


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


2  -  Earnings  Per  Share

            The  computation  of  basic  and  diluted  earnings  per share is as
follows:






                                                FOR THE THREE MONTHS       FOR THE SIX MONTHS
                                                  ENDED JUNE 30,            ENDED JUNE 30,
                                                2005         2004           2005         2004
                                               ------       ------          -----       -----
                                                     (in thousands, except  per share data)


Numerator for basic and diluted earnings per share:
                                                                            
     Net income                                $14,527      $ 9,728         $26,509     $26,221
                                               =======      =======         =======     =======
Denominator for basic earnings per share --
  weighted average shares outstanding           30,305       29,960          30,279      29,960
Effect of stock incentive plans                     89           68             131          85
                                               -------      -------         -------     -------
Denominator for diluted earnings per share      30,394       30,028          30,414      30,045
                                               =======      =======         =======     =======

Basic earnings per share                       $   .48      $   .32         $   .88     $   .88
                                               =======      =======         =======     =======
Diluted earnings per share                     $   .48      $   .32         $   .87     $   .87
                                               =======      =======         =======     =======






            The  following  options  to purchase shares of common stock were not
included  in  the computation of diluted earnings per share because the exercise
price  of  the  options  was  greater  than  the  average  market  price:


                        FOR  THE  THREE  MONTHS       FOR  THE  SIX  MONTHS
                              ENDED JUNE 30,               ENDED JUNE 30,
                          2005          2004            2005          2004
                          -----         -----          -----          -----
                                    (in thousands)

Number of options         1,747         2,127          1,747          1,635
                          =====         =====          =====          =====


3  -  Reinsurance

            Premiums  earned  are  net  of  amounts  ceded  of  $23,918,000  and
$45,827,000  for the three and six months ended June 30, 2005, respectively, and
$22,479,000  and  $44,057,000  for the three and six months ended June 30, 2004,
respectively.  Losses  and  loss settlement expenses are net of amounts ceded of
$3,522,000  and  $11,196,000  for  the three and six months ended June 30, 2005,
respectively,  and $5,562,000 and $39,716,000 for the three and six months ended
June  30, 2004, respectively.  Such amounts ceded do not include the reinsurance
transactions  with  Mutual under the pooling arrangement (described below) which
are  reflected  on the face of the income statements, but do include reinsurance
with  unaffiliated  reinsurers  and  the  reinsurance described in the following
paragraph.


Page 10


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)

            Harleysville  Group  has a reinsurance agreement with Mutual whereby
Mutual  reinsures  accumulated catastrophe losses in a quarter up to $14,400,000
in  excess  of  $3,600,000  in  return for a reinsurance premium.  The agreement
excludes catastrophe losses resulting from earthquakes, terrorism or hurricanes,
and  supplements  the  existing  external  catastrophe  reinsurance  program.
Harleysville  Group ceded to Mutual premiums earned of $2,336,000 and $2,263,000
and  losses  incurred  of  $(151,000) and $(816,000), for the three months ended
June  30,  2005  and  2004,  respectively.  Harleysville  Group  ceded to Mutual
premiums  earned  of  $4,411,000 and $4,260,000 and losses incurred of $(90,000)
and  $984,000  for  the  six  months ended June 30, 2005 and 2004, respectively.
Harleysville  Group  and  Mutual  have  agreed  to  terminate  this agreement on
December  31,  2005.

            Pursuant  to  the  terms  of  a  reinsurance  pooling agreement with
Mutual,  each  of  the  insurance  subsidiaries of Harleysville Group Inc. cedes
premiums,  losses  and  expenses  on  all of their respective business to Mutual
which, in turn, retrocedes to such subsidiaries a specified portion of premiums,
losses  and  expenses  of  Mutual and such subsidiaries.  Because this agreement
does  not  relieve  Harleysville  Group Inc.'s insurance subsidiaries of primary
liability  as  originating  insurers,  there  is  a concentration of credit risk
arising  from  business  ceded  to  Mutual.  However,  the  reinsurance  pooling
agreement  provides  for the right of offset. Mutual has an A. M. Best rating of
"A-"  (Excellent).


4  -  Cash  Flows

            There  were  net  cash tax payments of $4,100,000 and $4,282,000 and
cash  interest  payments of $3,195,000 and $3,071,000 in the first six months of
2005  and  2004,  respectively.


5  -  Segment  Information

            The  performance  of  the  personal  lines  and  commercial lines is
evaluated  based  upon  underwriting  results  as  determined  under  statutory
accounting  practices  (SAP).



Page 11



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


            Financial  data  by  segment  is  as  follows:







                                       FOR THE THREE MONTHS     FOR THE SIX MONTHS
                                         ENDED JUNE 30,          ENDED JUNE 30,
                                       2005         2004        2005        2004
                                      ------       ------      ------      ------
                                          (in thousands)

Revenues:
Premiums earned:
                                                               
          Commercial lines             $170,858    $163,791    $338,171   $326,111
          Personal lines                 39,007      43,861      78,374     88,489
                                       --------    --------    --------   --------
               Total premiums earned    209,865     207,652     416,545    414,600

     Net investment income               22,578      21,437      44,339     43,079
     Realized investment gains               68          59          68     12,547
     Other                                4,158       3,671       8,441      8,235
                                       --------    --------    --------   --------
Total revenues                         $236,669    $232,819    $469,393   $478,461
                                       ========    ========    ========   ========
Income before income taxes:
     Underwriting gain (loss):
          Commercial lines            $ (9,760)    $(16,358)   $(19,998)  $(26,006)
          Personal lines                 1,114           10       1,531      4,850
                                      --------     --------    --------   --------
               SAP underwriting loss    (8,646)     (16,348)    (18,467)   (30,856)
               GAAP adjustments          3,693        4,865       5,053      4,885
                                      --------     --------    --------   --------
               GAAP underwriting loss   (4,953)     (11,483)    (13,414)   (25,971)
          Net investment income         22,578       21,437      44,339     43,079
          Realized investment gains         68           59          68     12,547
          Other                            730          839       1,886      2,407
                                      --------     --------    --------   --------

Income before income taxes            $ 18,423     $ 10,852    $ 32,879   $ 32,062
                                      ========     ========    ========   ========






Page 12



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


6  -  Comprehensive  Income

            Comprehensive  income  for  the  three and six months ended June 30,
2005  and  2004  consisted  of  the  following  (all  amounts are net of taxes):






                                             FOR THE THREE MONTHS    FOR THE SIX MONTHS
                                                ENDED JUNE 30,         ENDED JUNE 30,
                                               2005        2004       2005         2004
                                              ------      ------     ------       ------
                                                            (in thousands)

                                                                      

Net income                                    $14,527     $  9,728    $26,509    $ 26,221
Other comprehensive income (loss):
     Unrealized investment holding gains
        (losses) arising during period          9,603      (25,322)    (5,807)    (14,601)
Less:
     Reclassification adjustment for gains
       included in net income                     (44)         (38)       (44)     (8,131)
                                              -------     --------    -------    --------

Net unrealized investment gains (losses)        9,559      (25,360)    (5,851)    (22,732)
                                              -------     --------    -------    --------
Comprehensive income (loss)                   $24,086     $(15,632)   $20,658    $  3,489
                                              =======     ========    =======    ========






7  -  Pension

           Harleysville  Group Inc. has a pension plan that covers substantially
all  full-time  employees.  The net periodic pension cost for the plan including
Mutual  consists  of  the  following  components:







                                          FOR THE THREE MONTHS     FOR THE SIX MONTHS
                                             ENDED JUNE 30,          ENDED JUNE 30,
                                            2005        2004        2005        2004
                                          -------      ------      ------      -------
                                                              (in thousands)


Components of net periodic pension cost:
                                                                    
   Service cost                           $ 2,209      $ 1,992     $ 4,418      $ 3,985
   Interest cost                            2,988        2,770       5,976        5,540
   Expected return on plan assets          (2,790)      (3,020)    (5,580)       (6,040)
   Recognized net actuarial loss            1,112          517       2,224        1,035
   Amortization of prior service cost          52           53         104          105
   Net transition amortization                 14           13          27           25
                                          -------      -------     -------      -------

Net periodic pension cost:
   Entire plan                            $ 3,585      $ 2,325     $ 7,169      $ 4,650
                                          =======      =======     =======      =======
   Harleysville Group portion             $ 2,374      $ 1,536     $ 4,749      $ 3,069
                                          =======      =======     =======      =======






Page 13




                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                                   (UNAUDITED)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Continued)


            Harleysville  Group's  expected  portion of the 2005 contribution to
the  pension  plan  is $8,015,000.  Contributions of $4,001,000 were made in the
first  six  months  of  2005.


8  -  Shareholders'  Equity

            Various  states  have  adopted the National Association of Insurance
Commissioners  (NAIC)  risk-based capital (RBC) standards that require insurance
companies to calculate and report statutory capital and surplus needs based on a
formula  measuring underwriting, investment and other business risks inherent in
an  individual  company's operations.  These RBC standards have not affected the
operations  of  Harleysville  Group  since  each  of  the  Company's  insurance
subsidiaries  has  statutory  capital and surplus in excess of RBC requirements.

            These  RBC  standards  require  the  calculation of a ratio of total
adjusted  capital to Authorized Control Level.  Insurers with a ratio below 200%
are  subject  to  different levels of regulatory intervention and action.  Based
upon  their  2004  statutory  financial  statements, the ratio of total adjusted
capital  to  the  Authorized  Control  Level  for  the  Company's nine insurance
subsidiaries  at  December  31,  2004  ranged  from  498%  to  609%.



Page 14



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

  ITEM  2.     MANAGEMENT'S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS


            Certain of the statements contained herein (other than statements of
historical  facts)  are  forward  looking  statements.  Such  forward  looking
statements  are  made  pursuant  to  the  safe  harbor provisions of the Private
Securities  Litigation  Reform Act of 1995 and include estimates and assumptions
related  to  economic,  competitive  and legislative developments. These forward
looking  statements  are  subject  to  change and uncertainty which are, in many
instances,  beyond  the  Company's  control  and  have  been  made  based  upon
management's  expectations  and beliefs concerning future developments and their
potential  effect  on  Harleysville Group. There can be no assurance that future
developments  will  be  in accordance with management's expectations so that the
effect of future developments on Harleysville Group will be those anticipated by
management.  Actual  financial results including premium growth and underwriting
results  could  differ  materially  from those anticipated by Harleysville Group
depending  on  the  outcome  of  certain  factors,  which may include changes in
property  and casualty loss trends and reserves; catastrophe losses; competition
in  insurance  product  pricing; government regulation and changes therein which
may  impede  the  ability to charge adequate rates; performance of the financial
markets;  fluctuations in interest rates; availability and price of reinsurance;
the  Best's  rating  of  Harleysville  Group; and the status of labor markets in
which  the  Company  operates.

Overview

             The Company's net income is primarily determined by three elements:

   -  net  premium  income

   -  investment  income

   -  amounts  paid  or  reserved  to  settle  insured  claims

            A  number  of  factors  may  affect  the  level  of  premium income,
including:

   -  limitations  on  rates  arising  from  the  competitive  market  place  or
      regulation

   -  limitation  on  available  business  arising  from  a need to maintain the
      quality  of  underwritten  risks

   -  the Company's ability to maintain its A- ("excellent") rating by A.M. Best

   -  the  ability  of  the  Company to maintain a reputation for efficiency and
      fairness  in  claims  administration


Page 15




                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


            A  number  of  factors  may  affect  the level of investment income,
including:

   -  general  interest  rate  levels  and  amounts  of  cash  flow

   -  specific  adverse events affecting the issuers of debt obligations held by
      the  Company

   -  changes in the prices of equity securities generally and those held by the
      Company  specifically

            Loss  and  loss  settlement  expenses  are  affected  by a number of
factors,  including:

   -  the  quality  of  the  risks  underwritten  by  the  Company

   -  the  nature  and  severity  of  catastrophe  losses

   -  the  availability,  cost  and  terms  of  reinsurance

   -  underlying  settlement  costs,  including  medical  and  legal  costs

            The  Company  seeks  to  manage  each of the foregoing to the extent
within  its  control.  Many of the foregoing factors are partially, or entirely,
outside  of  the  control  of  the  Company.

Critical  Accounting  Policies  and  Estimates

            The  consolidated  financial  statements  are prepared in conformity
with  U.S.  generally accepted accounting principles, which require Harleysville
Group to make estimates and assumptions (see Note 1 of the Notes to Consolidated
Financial  Statements  for  the  year  ended  December  31, 2004 included in the
Company's  2004  Annual Report filed with the Securities and Exchange Commission
on  Form  10-K).  Harleysville Group believes that of its significant accounting
policies,  the following may involve a higher degree of judgment and estimation.
The  judgments, or the methodology on which the judgments are made, are reviewed
quarterly  with  the  Audit  Committee.

            Liability  for  Losses  and Loss Settlement Expenses.  The liability
for  losses  and  loss  settlement expenses represents estimates of the ultimate
unpaid  cost  of all losses incurred, including losses for claims which have not
yet  been  reported  to  Harleysville  Group.  The  amount  of loss reserves for
reported claims is based primarily upon a case-by-case evaluation of the type of
risk  involved,  knowledge  of  the circumstances surrounding each claim and the
insurance  policy  provisions relating to the type of loss.  The amounts of loss
reserves  for  unreported  claims  and  loss


Page 16



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


settlement  expense  reserves are determined utilizing historical information by
line  of  insurance  as adjusted to current conditions.  Inflation is implicitly
provided  for  in  the  reserving function through analysis of costs, trends and
reviews of historical reserving results.  Reserves are closely monitored and are
recomputed periodically using the most recent information on reported claims and
a variety of statistical techniques.  It is expected that such estimates will be
more  or  less  than  the  amounts  ultimately paid when the claims are settled.
Changes  in  these  estimates  are  reflected  in  current  operations.

            Investments.  Generally,  unrealized  investment  gains or losses on
investments carried at fair value, net of applicable income taxes, are reflected
directly  in  shareholders'  equity  as a component of comprehensive income and,
accordingly,  have  no  effect  on net income.  However, if the fair value of an
investment  declines  below  its  cost  and  that  decline  is deemed other than
temporary,  the  amount  of  the  decline  below  cost  is  charged to earnings.
Harleysville  Group  monitors  its  investment  portfolio  and quarterly reviews
investments that have experienced a decline in fair value below cost to evaluate
whether  the  decline is other than temporary.  Such evaluations consider, among
other  things, the magnitude and reasons for a decline and the prospects for the
fair  value  to  recover  in  the  near  term.  Future adverse investment market
conditions, or poor operating results of underlying investments, could result in
an  impairment  charge  in  the  future.

             Harleysville  Group  has  written  down  to  fair value, any equity
security  that  has  declined  below  cost  by more than 20% and maintained such
decline  for  six months, or by 50% or more, in the quarter in which either such
decline  occurred.  In  some  cases,  securities  that have declined by a lesser
amount  or  for  a  shorter  period  of  time are written down if the evaluation
indicates  the  decline is other-than-temporary. Fair value of equity securities
is based on the closing market value as reported by a national stock exchange or
Nasdaq.  The  fair  value  of fixed maturities is based upon data supplied by an
independent pricing service.  It can be difficult to determine the fair value of
non-traded  securities  but Harleysville Group does not own a material amount of
non-traded  securities.

            Policy  Acquisition  Costs.  Policy  acquisition  costs,  such  as
commissions,  premium  taxes  and certain other underwriting and agency expenses
that  vary  with  and  are  primarily related to the production of business, are
deferred  and  amortized  over  the  effective  period  of the related insurance
policies  and  in  proportion  to  the  premiums earned.  The method followed in
computing  deferred  policy acquisition costs limits the amount of such deferred
costs  to  their  estimated  realizable value.  The estimation of net realizable
value  takes  into  account  the premium to be earned, related investment income
over  the  claim paying period, losses and loss settlement expenses, and certain
other  costs expected to be incurred as the premium is earned. Future changes in
estimates,  the most significant of which is expected losses and loss settlement
expenses,  may require adjustments to deferred policy acquisition costs.  If the
estimation  of  net  realizable  value  indicates that the acquisition costs are
unrecoverable,  further  analyses  are  completed  to  determine if a reserve is
required  to  provide  for losses that may exceed the related unearned premiums.



Page 17



     HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


           Contingencies.  Besides  claims  related  to  its insurance products,
Harleysville  Group is subject to proceedings, lawsuits and claims in the normal
course  of  business.  Harleysville Group assesses the likelihood of any adverse
outcomes to these matters as well as potential ranges of probable losses.  There
can be no assurance that actual outcomes will not differ from those assessments.

            The  application of certain of these critical accounting policies to
the  periods  ended June 30, 2005 and 2004 is discussed in greater detail below.


Results  of  Operations

            Premiums  earned  increased $2.2 million and $1.9 million during the
three  and  six  months  ended  June  30,  2005, respectively. The increases are
primarily  due  to  increases  in  premiums  earned for commercial lines of $7.1
million  and  $12.0 million, respectively, partially offset by decreases of $4.9
million  and  $10.1  million in personal lines premiums earned for the three and
six  months ended June 30, 2005, respectively.  The increases in premiums earned
for  commercial lines were 4.3% and 3.7% for the three and six months ended June
30,  2005,  respectively, primarily due to higher average premiums. The declines
in premiums earned for personal lines were 11.1% and 11.4% for the three and six
months  ended June 30, 2005, respectively, primarily due to fewer policy counts.
The  reduction  in  personal lines volume was driven primarily by a reduction of
personal automobile business from the continued implementation of more stringent
underwriting  processes.

            Investment  income  increased  $1.1 million and $1.3 million for the
three  and six months ended June 30, 2005 as compared to the same periods in the
prior  year, resulting from an increase in invested assets partially offset by a
lower  yield  on  the  fixed  maturity  investment  portfolio.

            Realized investment gains decreased $12.5 million for the six months
ended  June  30, 2005 as compared to the same period in the prior year, and were
essentially  unchanged  for the three months ended June 30, 2005.  The six-month
decrease  primarily  resulted from gains on the sale of two equity securities in
the  first  quarter  of  2004.




Page 18


                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)

            Harleysville  Group  holds securities with unrealized losses at June
30,  2005  as  follows:






                                                                        LENGTH OF UNREALIZED LOSS
                                                                        -------------------------
                                                         UNREALIZED      LESS THAN     OVER 12
                                         FAIR VALUE         LOSS         12 MONTHS      MONTHS
                                       --------------    ----------    -------------  -----------
                                                               (in thousands)

                                                                          
Fixed maturities:
   U.S. Treasury securities and
       obligations of U.S. government
       corporations and agencies          $ 78,644       $   662       $  240        $  422
   Obligations of states and
       political subdivisions               96,414         1,403          409           994
   Corporate securities                    158,808         2,719          891         1,828
   Mortgage-backed securities               18,334           103           94             9
                                          --------       -------       ------        ------
      Total fixed maturities              $352,200       $ 4,887       $1,634        $3,253
                                          ========       =======       ======        ======
      Equity securities                   $ 27,362       $ 2,184       $2,184        $ -
                                          ========       =======       ======        ======





            There  are  13 positions that comprise the unrealized loss in equity
investments  at  June  30, 2005.  All have had volatile price movements and have
not  been  significantly  below cost for significant continuous amounts of time.
Harleysville  Group has been monitoring these securities and it is possible that
some  may  be  written  down  in  the  income  statement  in  the  future.

            Of  the  total  fixed maturity securities with an unrealized loss at
June  30, 2005, securities with a fair value of $260.1 million and an unrealized
loss  of  $3.7  million  are classified as available for sale and are carried at
fair  value  on  the  balance  sheet while securities with a fair value of $92.1
million  and  an  unrealized  loss  of  $1.2  million  are classified as held to
maturity  on  the  balance  sheet  and  are  carried  at  amortized  cost.

            The fixed maturity investments with continuous unrealized losses for
less  than  twelve  months  were  primarily  due  to the impact of higher market
interest  rates  rather  than  a  decline  in  credit quality.  There are $137.0
million  in fixed maturity securities, at fair value, that at June 30, 2005, had
been  below  amortized  cost  for  over  twelve  months.  Of the $3.3 million of
unrealized  losses  on such securities, $2.0 million relates to securities which
carry  investment  grade ratings and have declined in fair value roughly in line
with  market  interest  rate  changes.  The remaining $1.3 million of unrealized
losses  are comprised of airline enhanced equipment trust certificates (EETC) as
follows:






                                          FAIR        MATURITY
                            COST          VALUE        DATES
                           ---------     -------     ---------
                                   (in thousands)

                                           
American Airlines           $14,369       $13,712         2011
United Airlines               6,932         6,423    2010-2012
Other airlines                2,000         1,892         2011
                            -------       -------
                            $23,301       $22,027
                            =======       =======







Page 19



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)

            After  the events of September 11, 2001, air travel and the value of
these  airlines'  EETC  securities  declined.  The  EETCs  are  all  "A tranche"
holdings,  which  means  they  are in a senior credit position to the underlying
airplane  collateral  value as compared to B and C tranche holders.  At the time
of  issuance,  the  collateral was appraised at approximately twice the value of
the  A  tranche  EETCs.  Recent  estimates  indicate  that  in a distressed sale
scenario,  the  value  of  the collateral would be approximately the same as the
EETCs'  cost.  The  EETCs'  market  value  has  improved  over  the  past  year.
Harleysville  Group  is participating in certain EETC creditor committees and is
monitoring  developments. It is possible that these EETCs may be written down in
the  income  statement in the future, depending upon developments involving both
the  issuers  and  world  events  which  impact  the  level  of  air  travel.

             Income  before  income  taxes  increased $7.6 million for the three
months ended June 30, 2005 compared to the same prior year period.  The increase
was  primarily due to the increase in investment income and a lower underwriting
loss.  Income  before  income  taxes  increased  $0.8 million for the six months
ended  June  30,  2005 compared to the same prior year period.  The increase was
primarily  due  to  the  increase  in investment income and a lower underwriting
loss,  partially  offset  by  lower  realized  investment  gains.  The  lower
underwriting  losses were primarily due to lower catastrophe losses, lesser loss
severity  and  lower  expenses.  Catastrophe  losses  were $0.6 million and $1.6
million  for  the  three  and  six  months ended June 30, 2005, respectively, as
compared  to  $1.3  million  and $3.9 million for the three and six months ended
June  30,  2004,  respectively.

            An  insurance  company's  statutory  combined  ratio  is  a standard
measure  of  underwriting profitability.  This ratio is the sum of (1) the ratio
of  incurred  losses and loss settlement expenses to net earned premium; (2) the
ratio  of  expenses  incurred for commissions, premium taxes, administrative and
other  underwriting  expenses  to  net  written  premium;  and  (3) the ratio of
dividends  to  policyholders to net earned premium.  The combined ratio does not
reflect investment income, federal income taxes or other non-operating income or
expense.  A  ratio  of  less  than  100 percent generally indicates underwriting
profitability.  Harleysville  Group's  statutory  combined  ratio  decreased  to
101.9% for the three months ended June 30, 2005 from 105.4% for the three months
ended  June  30,  2004 and decreased to 103.1% for the six months ended June 30,
2005  from  106.3%  for the six months ended June 30, 2004.  Such decreases were
due  to better underwriting results in both commercial lines and personal lines.


Page 20



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


            The  statutory combined ratios by line of business for the three and
six  months  ended  June 30, 2005, as compared to the three and six months ended
June  30,  2004,  were  as  follows:







                                              FOR THE THREE MONTHS    FOR THE SIX MONTHS
                                               ENDED JUNE 30,           ENDED JUNE 30,
                                                 2005       2004       2005        2004
                                                ------     ------     ------      ------


Commercial:
                                                                     
     Automobile                                  97.9%     104.7%      99.0%     103.9%
     Workers compensation                       124.2%     122.2%     124.8%     122.5%
     Commercial multi-peril                     100.4%     105.5%     102.7%     105.3%
     Other commercial                           100.9%      95.4%      92.9%      88.5%
          Total commercial                      103.0%     106.7%     103.7%     105.7%

Personal:
     Automobile                                 104.1%     110.9%     105.1%     114.6%
     Homeowners                                  92.3%      86.0%      97.4%      97.6%
     Other personal                              63.7%      83.6%      75.8%     112.3%
          Total personal                         97.2%     100.6%     100.4%     108.4%

               Total personal and commercial    101.9%     105.4%     103.1%     106.3%






            The  following  table  presents  the liability for unpaid losses and
loss  settlement  expenses  by  major  line  of  business:







                                                    JUNE 30,         DECEMBER 31,
                                                     2005               2004
                                                 -----------         ------------
                                                            (in thousands)
Commercial:
                                                                
     Automobile                                  $  264,564           $  249,044
     Workers compensation                           305,045              298,994
     Commercial multi-peril                         406,389              371,247
     Other commercial                                78,063               70,535
                                                 ----------           ----------
          Total commercial                        1,054,061              989,820
                                                 ----------           ----------
Personal:
     Automobile                                      99,465              103,050
     Homeowners                                      38,301               37,026
     Other personal                                   1,314                1,713
                                                 ----------           ----------
          Total personal                            139,080              141,789
                                                 ----------           ----------
               Total personal and commercial      1,193,141            1,131,609
Plus reinsurance recoverables                       162,622              186,126
                                                 ----------           ----------
          Total liability                        $1,355,763           $1,317,735
                                                 ==========           ==========






Page 21



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)

            The  commercial  lines  statutory combined ratio decreased to 103.0%
for  the three months ended June 30, 2005 from 106.7% for the three months ended
June  30,  2004  and  decreased to 103.7% for the six months ended June 30, 2005
from  105.7%  for  the  six  months  ended  June  30,  2004.  The decreases were
primarily  due  to  declines in the combined ratio for commercial automobile and
commercial  multi-peril  primarily due to lower loss severity and lower property
losses.

            There was $8.8 million of net favorable development in the provision
for  insured  events in prior years for the six months ended June 30, 2005 ($2.8
million  in  the second quarter of 2005) of which $4.3 million was in commercial
lines and $4.5 million was in personal lines.  Approximately $4.0 million of the
$8.8  million  of  favorable  development  related  to  the  liability  for loss
adjusting  expenses.  The  remaining  favorable development primarily related to
the  2004 and 2003 accident years partially offset by adverse development in the
prior  accident years.  There was $3.0 million of net adverse development in the
provision  for  insured  events in prior years for the six months ended June 30,
2004.

            The  following  table  presents  workers  compensation  claim  count
information  for  the  total  pooled  business  in  which  Harleysville  Group
participates and payment amounts which are Harleysville Group's pooling share of
the  total  pooled  amounts.






                                                FOR THE SIX MONTHS      FOR THE YEAR ENDED
                                                ENDED JUNE 30, 2005     DECEMBER 31, 2004
                                                -------------------     ------------------
                                                         (dollars in thousands)

                                                                  
Number of claims pending, beginning of period     6,832                    8,005
Number of claims reported                         4,523                   10,632
Number of claims settled or dismissed            (4,915)                 (11,805)
Number of claims pending, end of period           6,440                    6,832
                                               --------                 --------
Losses paid                                    $ 32,831                 $ 73,548
                                               ========                 ========
Loss settlement expenses paid                  $  7,306                 $ 15,831
                                               ========                 ========





            Workers  compensation  losses  primarily  consist  of  indemnity and
medical  costs  for injured workers.  The reduction in claim counts reflects the
impact  of  a  reduction  in workers compensation exposure as policy counts have
declined.

            Harleysville  Group  records  the  actuarial  best  estimate  of the
ultimate  unpaid  losses  and  loss  settlement  expenses  incurred and does not
determine  an  estimated  possible  range  of  loss.  Actuarial  loss  reserving
techniques  and assumptions, which rely on historical information as adjusted to
reflect  current  conditions,  have been consistently applied during the periods
presented.  Changes  in the estimate of the liability for unpaid losses and loss
settlement  expenses  reflect actual payments and evaluations of new information
and  data  since the last reporting date. These changes correlate with actuarial
trends.


Page 22



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


            Because  of  the nature of insurance claims, there are uncertainties
inherent  in  the  estimates  of  ultimate losses.  Reorganization of the claims
operation  in  recent years has resulted in new people and processes involved in
settling  claims.  As  a result, more recent statistical data reflects different
patterns  than  in  the  past  and give rise to uncertainty as to the pattern of
future  loss settlements.  Litigation on bodily injury liability cases is higher
for  the past three years while the rate of settlement is slower.  These changed
patterns  give  rise  to  greater  uncertainty  as to the pattern of future loss
settlements  on  bodily  injury  liability  claims.  There  are  uncertainties
regarding future loss cost trends particularly related to medical treatments and
automobile  repair.  Court decisions, regulatory changes and economic conditions
can  affect  the ultimate cost of claims that occurred in the past. Accordingly,
the  ultimate  liability  for  unpaid  losses  and loss settlement expenses will
likely  differ from the amount recorded at June 30, 2005. For every 1% change in
the  estimate,  the  effect  on  pre-tax  income  would  be  $11.9  million.

            The  property  and  casualty  industry has had substantial aggregate
loss experience from claims related to asbestos-related illnesses, environmental
remediation,  product  liability,  mold,  and  other  uncertain  exposures.
Harleysville  Group  has  not  experienced  significant losses from such claims.

            The  personal  lines statutory combined ratio decreased to 97.2% and
100.4%  for  the three and six months ended June 30, 2005 from 100.6% and 108.4%
for  the three and six months ended June 30, 2004.  The decreases primarily were
due  to  generally lower loss severity, lesser catastrophe losses which affected
the  homeowners  line  and  the  aforementioned  favorable  development.

            Net  catastrophe  losses decreased $0.7 million and $2.3 million and
losses  ceded  under the aggregate catastrophe reinsurance agreement with Mutual
decreased  $0.7 million and $1.1 million for the three and six months ended June
30,  2005,  respectively,  due to fewer and less severe catastrophes in the 2005
periods.


Page 23



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


            Severance  charges  of  $1.1  million and $0.7 million were incurred
during  the  three months ended June 30, 2005 and 2004, respectively, related to
ongoing  expense-reduction  initiatives.  An  estimated  $1.5  million severance
charge  is  expected  to  be  recorded in the third quarter of 2005 related to a
further  expense-reduction  initiative  begun  in  the  third  quarter.

            The  income  tax expense for the three and six months ended June 30,
2005  includes  a  tax  benefit of $2.5 million and $5.1 million associated with
tax-exempt  interest compared to $2.7 million and $5.4 million in the same prior
year  periods.

            Effective for one year from July 1, 2005, the Company's subsidiaries
and Mutual and its wholly-owned subsidiaries renewed its catastrophe reinsurance
which  provides  coverage  ranging  from  85.0% to 100% of up to $205 million in
excess  of  a  retention  of  $30  million  for  any given catastrophe excluding
terrorism for commercial lines.  Harleysville Group's 2005 pooling share of this
coverage  would  range from 85.0% to 100% of up to $147.6 million in excess of a
retention  of $21.6 million for any given catastrophe.  Pursuant to the terms of
the  treaty,  the  maximum  recovery would be $196.5 million for any catastrophe
involving  an  insured  loss equal to or greater than $235 million. Harleysville
Group's  2005 pooling share of this maximum recovery would be $141.5 million for
any  catastrophe  involving  an  insured  loss of $169.2 million or greater. The
treaty  includes  reinstatement  provisions  providing for coverage for a second
catastrophe  and  requiring  payment  of an additional premium in the event of a
first  catastrophe  occurring.  Harleysville  Group  and  Mutual  have purchased
property  per  risk  excess  of  loss reinsurance which covers certain terrorism
losses and provides for recovery of up to $8.5 million in excess of $1.5 million
of  terrorism  losses  for any one risk under certain circumstances. The maximum
recovery  by  Harleysville Group on a terrorism loss occurrence is $8.6 million.

            Harleysville  Group and Mutual agreed on August 2, 2005 to terminate
the  reinsurance  agreement  whereby  Mutual  reinsures  certain  accumulated
catastrophe  losses  as  described  in Note 3 of Notes to Consolidated Financial
Statements.  The  agreement  will  terminate on December 31, 2005.  The coverage
will  not be replaced as it is no longer needed based on our current catastrophe
risk  profile.  Harleysville Group ceded to Mutual premiums earned of $4,411,000
and  $4,260,000 and losses incurred of $(90,000) and $984,000 for the six months
ended  June  30,  2005  and  2004,  respectively.

Liquidity  and  Capital  Resources

            Operating activities provided $71.5 million and $23.9 million of net
cash  for the six months ended June 30, 2005 and 2004, respectively.  The change
primarily  is  from an increase in net cash provided by underwriting activities.


Page 24



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
                                   (Continued)


            Investing  activities  used  $62.9  million and $27.0 million of net
cash  for  the  six  months  ended  June  30,  2005 and 2004, respectively.  The
increase  is  primarily  due  to  an increase in net purchases of fixed maturity
investments,  partially  offset  by  a  decrease  in  the purchase of short-term
investments.

            Net  cash  used  by  financing  activities was $8.6 million and $9.2
million  for  the  six  months  ended June 30, 2005 and 2004, respectively.  The
change  is  primarily  due  to  an  increase  in  the  issuance of common stock.

            Harleysville  Group  participates  in  a  securities lending program
whereby  certain  fixed  maturity  securities  from the investment portfolio are
loaned to other institutions for a short period of time in return for a fee.  At
June 30, 2005, Harleysville Group held cash collateral of $130.6 million related
to  securities  on  loan  with  a  market  value of $127.1 million. Harleysville
Group's  policy  is to require initial collateral of 102% of the market value of
loaned  securities  plus  accrued  interest,  which is required to be maintained
daily  by  the  borrower  at no less than 100% of such market value plus accrued
interest  over  the  life  of the loan.  Acceptable collateral includes cash and
money  market instruments, government securities, A-rated corporate obligations,
AAA-rated  asset-backed  securities or GIC's and Funding Agreements from issuers
rated  A  or better.  The securities on loan to others have been segregated from
the  other  invested  assets  on the balance sheet.  In addition, the assets and
liabilities  have  been  grossed  up  to  reflect  the collateral held under the
securities lending program and the obligation to return this collateral upon the
return  of  the  loaned  securities.

            Harleysville  Group  Inc.  maintained  $13.9  million  of  cash  and
marketable  securities at June 30, 2005 which is available for general corporate
purposes  including  dividends,  debt  service,  capital  contributions  to
subsidiaries,  acquisitions  and  the  repurchase  of stock.  The Company has no
material  commitments  for  capital  expenditures  as  of  June  30,  2005.

            RISK  FACTORS

            The  business,  results  of  operations and financial condition, and
therefore  the value of Harleysville Group's securities, are subject to a number
of  risks.  Some  of those risks are set forth in the Company's annual report on
Form  10-K  for  fiscal  year  2004,  filed  with  the  Securities  and Exchange
Commission  on  March  14,  2005.


Page 25



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

           ITEM  3.     QUANTITATIVE  AND  QUALITATIVE  DISCLOSURE
                                ABOUT MARKET RISK


             Harleysville  Group's  market risk generally represents the risk of
gain  or  loss  that  may  result from the potential change in the fair value of
Harleysville  Group's investment portfolio as a result of fluctuations in prices
and  interest  rates.  Harleysville  Group  attempts to manage its interest rate
risk  by maintaining an appropriate relationship between the average duration of
the  investment  portfolio  and  the  approximate  duration  of its liabilities.

            Harleysville Group has maintained approximately the same duration of
its  investment  portfolio to its liabilities from December 31, 2004 to June 30,
2005.  In addition, the Company has maintained approximately the same investment
mix  during  this  period.




Page 26



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

     ITEM  4.               CONTROLS  AND  PROCEDURES


(a)  Evaluation of disclosure controls and procedures. Our management, under the
     supervision  and  with the participation of the chief executive officer and
     the  chief  financial  officer,  has  evaluated  the  effectiveness  of our
     disclosure  controls  and  procedures  as  of  June 30,  2005, which is the
     end of the period  covered  by  this  quarterly report on Form 10-Q.  Based
     on  that  evaluation,  the chief  executive  officer  and  chief  financial
     officer   have   concluded  that  the  Company's  disclosure  controls  and
     procedures are effective  and as  such  provide for   a  mechanism  whereby
     (a)  material  information  relating  to  us,  including  our  consolidated
     subsidiaries, is made known to these officers by other employees of us  and
     our consolidated  subsidiaries, particularly  material information  related
     to  the  period  for  which this periodic report is being prepared; and (b)
    this information is recorded, processed, summarized, evaluated and reported,
     as applicable,  within  the  time  periods specified in the rules and forms
     of the Securities  and  Exchange  Commission.

(b)  Change  in   internal  control  over  financial  reporting.  There  was  no
     change  in the  Company's internal  control over  financial  reporting that
     occurred during the second quarter of 2005 that has materially affected, or
     is reasonably likely  to materially affect, the Company's  internal control
     over financial reporting.



Page 27



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

                           PART II.  OTHER INFORMATION


ITEM  4.  Submission  of  Matters  to  a  Vote  of  Security  Holders

     The  annual  meeting of stockholders of Harleysville Group Inc. was held on
     April  27,  2005 (the "Annual Meeting" or "Meeting"),  with  the  following
     result:

     The  total  number of shares represented at the Annual Meeting in person or
    by proxy was 28,202,918 of the 30,293,759 shares of common stock outstanding
     and entitled  to  vote  at  the  Meeting.

     On the resolution to elect W. Thacher Brown, Mirian M. Graddick and William
     W.  Scranton,  III as class "C" Directors to serve until  the expiration of
     their respective  terms  and until  their  successors are duly elected, the
     nominees for Director received the number of votes set forth opposite their
     respective names:

                                           Number  of  Votes
                                        ------------------------
                                           For          Withheld
                                        ----------     ---------

     W.  Thacher  Brown                 25,967,249     2,235,669
     Mirian  M.  Graddick               25,964,937     2,237,981
     William  W.  Scranton,  III        25,963,138     2,239,780

     There were no abstentions or broker non-votes recorded. On the basis of the
     above  vote,  W. Thacher Brown, Mirian M. Graddick and William W. Scranton,
     III were  elected  as  class  "C"  Directors  to serve until the expiration
     of their respective terms and  until their  successors  are  duly  elected.
     The  other  directors  who  continued  in  office  after the election were:
     Lowell R. Beck, Michael  L.  Browne,  G.  Lawrence  Buhl, Frank E. Reed and
     Jerry S. Rosenbloom.

     The  resolution  to  approve  the  Directors'  Deferred Stock Unit Plan was
     adopted,  20,532,567  votes  for  the  resolution, 6,600,098  votes against
     the  resolution   and  31,413  abstentions.  There  were  1,038,840  broker
     non-votes.

     The resolution to approve the Amended and Restated Long Term Incentive Plan
     was adopted,  24,901,685  votes for the resolution, 2,240,777 votes against
     the  resolution  and  21,616  abstentions.   There  were  1,038,840  broker
     non-votes.

     Stockholders  of Harleysville Group Inc. owning a majority of the Company's
     outstanding  voting  stock approved the Harleysville Group Inc. 2005 Agency
     Stock  Purchase  Plan  by  written  consent  dated  June  16, 2005 i n lieu
     of a special meeting  of  stockholders.



Page 28



                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

                           PART II.  OTHER INFORMATION
                                   (Continued)


ITEM  6.   a.      Exhibits

           31.1   Certification  of  Chief  Executive  Officer Pursuant to Rule
                  13a-14(a)  of  the  Exchange  Act.

           31.2   Certification  of  Chief  Financial  Officer Pursuant to Rule
                  13a-14(a)  of  the  Exchange  Act.

           32.1   Certification  of  Chief  Executive  Officer  Pursuant  to 18
                  U.S.C.  1350,  as  Adopted  Pursuant  to  Section 906 of the
                  Sarbanes-Oxley Act of  2002.

           32.2   Certification  of  Chief  Financial  Officer  Pursuant  to 18
                  U.S.C. 1 350,  as  Adopted  Pursuant  to  Section 906  of the
                  Sarbanes-Oxley Act of  2002.







                                    SIGNATURE

            Pursuant to the requirements of the Securities Exchange Act of 1934,
the  registrant  has  duly  caused this report to be signed on its behalf by the
undersigned  thereunto  duly  authorized.


                                   HARLEYSVILLE GROUP INC.


Date:  August 2, 2005     By:      /s/  ARTHUR E. CHANDLER
                                   ----------------------------
                                   Arthur E. Chandler
                                   Senior Vice President and
                                   Chief Financial Officer
                                  (principal financial officer)





Page 29



     EXHIBIT  (31.1)

                    CERTIFICATION PURSUANT TO THE SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

I,  Michael  L.  Browne,  certify  that:

1.  I  have  reviewed  the  quarterly report on  Form 10-Q of Harleysville Group
    Inc.;

2.  Based on my knowledge,  this report does not contain any untrue statement of
    a  material  fact  or  omit  to  state a material fact necessary to make the
    statements  made,  in light of the circumstances under which such statements
    were made,  not  misleading  with  respect  to  the  period covered  by this
    report;

3.  Based  on  my  knowledge,  the  financial  statements,  and  other financial
    information included in this report, fairly present in all material respects
    the  financial  condition,  results  of  operations  and  cash  flows of the
    registrant as of,  and  for,  the  periods  presented  in  this  report;

4.  The  registrant's  other  certifying  officers  and  I  are  responsible for
    establishing  and maintaining disclosure controls and procedures (as defined
    in  Exchange  Act Rules  13a-15(e) and  15d-15(e)) and internal control over
    financial  reporting  (as  defined  in  Exchange  Act  Rules  13a-15(f)  and
    15d-15(f)) for the  registrant  and  have:

   a)  Designed   such  disclosure  controls   and  procedures,  or  caused such
       disclosure  controls and procedures to be designed under our supervision,
       to   ensure  that  material   information  relating  to  the  registrant,
       including  its  consolidated  subsidiaries, is made known to us by others
       within those entities, particularly  during  the  period  in  which  this
       report  is  being  prepared;

   b)  Designed  such  internal control over financial reporting, or caused such
       internal  control over  financial  reporting  to  be  designed  under our
       supervision, to provide reasonable assurance  regarding  the  reliability
       of financial reporting  and  the  preparation of financial statements for
       external  purposes  in  accordance  with  generally  accepted  accounting
       principles;

   c)  Evaluated the effectiveness  of  the registrant's disclosure controls and
       procedures  and  presented  in this  report  our  conclusions  about  the
       effectiveness  of  the  disclosure controls and procedures, as of the end
       of the period covered  by  this report  based  on  such  evaluation;  and

   d)  Disclosed in this  report any change in the registrant's internal control
       over  financial  reporting  that  occurred  during  the registrant's most
       recent fiscal quarter (the registrant's fourth fiscal quarter in the case
       of an annual  report)  that  has  materially  affected, or is  reasonably
       likely  to  materially  affect,  the  registrant's  internal control over
       financial reporting; and

5.  The  registrant's  other  certifying officers and I have disclosed, based on
    our  most recent evaluation of internal control over financial reporting, to
    the registrant's  auditors  and  the  audit  committee  of  the registrant's
    board  of  directors  (or  persons  performing  the  equivalent  functions):

   a)  All  significant  deficiencies  and  material weaknesses in the design or
       operation  of  internal  control  over  financial  reporting  which  are
       reasonably  likely  to  adversely  affect  the  registrant's  ability  to
      record,  process, summarize  and  report  financial  information; and

   b)  Any  fraud, whether  or  not  material, that involves management or other
      employees who have a significant role in the registrant's internal control
       over  financial  reporting.


Date:   August  2,2005      /s/   MICHAEL  L.  BROWNE
        --------------     -------------------------------------------
                           Michael  L.  Browne
                           Chief  Executive  Officer  and  a  Director


Page 30




     EXHIBIT  (31.2)

                    CERTIFICATION PURSUANT TO THE SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

I,  Arthur  E.  Chandler,  certify  that:

1.  I  have  reviewed  the  quarterly report on  Form 10-Q of Harleysville Group
    Inc.;

2.  Based on my knowledge,  this report does not contain any untrue statement of
    a  material  fact  or  omit  to  state a material fact necessary to make the
    statements  made,  in light of the circumstances under which such statements
    were made,  not  misleading  with  respect  to  the  period covered  by this
    report;

3.  Based  on  my  knowledge,  the  financial  statements,  and  other financial
    information included in this report, fairly present in all material respects
    the  financial  condition,  results  of  operations  and  cash  flows of the
    registrant as of,  and  for,  the  periods  presented  in  this  report;

4.  The  registrant's  other  certifying  officers  and  I  are  responsible for
    establishing  and maintaining disclosure controls and procedures (as defined
    in  Exchange  Act Rules  13a-15(e) and  15d-15(e)) and internal control over
    financial  reporting  (as  defined  in  Exchange  Act  Rules  13a-15(f)  and
    15d-15(f)) for the  registrant  and  have:

   a)  Designed   such  disclosure  controls   and  procedures,  or  caused such
       disclosure  controls and procedures to be designed under our supervision,
       to   ensure  that  material   information  relating  to  the  registrant,
       including  its  consolidated  subsidiaries, is made known to us by others
       within those entities, particularly  during  the  period  in  which  this
       report  is  being  prepared;

   b)  Designed  such  internal control over financial reporting, or caused such
       internal  control over  financial  reporting  to  be  designed  under our
       supervision, to provide reasonable assurance  regarding  the  reliability
       of financial reporting  and  the  preparation of financial statements for
       external  purposes  in  accordance  with  generally  accepted  accounting
       principles;

   c)  Evaluated the effectiveness  of  the registrant's disclosure controls and
       procedures  and  presented  in this  report  our  conclusions  about  the
       effectiveness  of  the  disclosure controls and procedures, as of the end
       of the period covered  by  this report  based  on  such  evaluation;  and

   d)  Disclosed in this  report any change in the registrant's internal control
       over  financial  reporting  that  occurred  during  the registrant's most
       recent fiscal quarter (the registrant's fourth fiscal quarter in the case
       of an annual  report)  that  has  materially  affected, or is  reasonably
       likely  to  materially  affect,  the  registrant's  internal control over
       financial reporting; and

5.  The  registrant's  other  certifying officers and I have disclosed, based on
    our  most recent evaluation of internal control over financial reporting, to
    the registrant's  auditors  and  the  audit  committee  of  the registrant's
    board  of  directors  (or  persons  performing  the  equivalent  functions):

   a)  All  significant  deficiencies  and  material weaknesses in the design or
       operation  of  internal  control  over  financial  reporting  which  are
       reasonably  likely  to  adversely  affect  the  registrant's  ability  to
      record,  process, summarize  and  report  financial  information; and

   b)  Any  fraud, whether  or  not  material, that involves management or other
      employees who have a significant role in the registrant's internal control
       over  financial  reporting.


Date:  August  2,2005      /s/   ARTHUR  E.  CHANDLER
       --------------     ---------------------------
                          Arthur  E.  Chandler
                          Senior  Vice  President  and
                          Chief  Financial  Officer



Page 31



     EXHIBIT  (32.1)

                             HARLEYSVILLE GROUP INC.

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In  connection  with  the  Quarterly  Report  of  Harleysville  Group  Inc. (the
"Company")  on  Form  10-Q for the period ended June 30, 2005, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Michael
L.  Browne,  Chief  Executive  Officer  of  the Company, certify, pursuant to 18
U.S.C.  section  1350,  as adopted pursuant to section 906 of the Sarbanes-Oxley
Act  of  2002,  that  based  on  my  knowledge:

(1)  The  Report  fully  complies  with  the requirements of section 13(a) or
     15(d)  of  the  Securities  Exchange  Act  of  1934;  and

(2)  The information contained in the Report fairly presents, in all material
     respects,  the  financial  condition  and  results of operations of the
     Company.





Date:   August  2,  2005       /s/  MICHAEL  L.  BROWNE
        ----------------     --------------------------
                             Michael  L.  Browne
                             Chief  Executive  Officer
                             and  a  Director




Page 32



     EXHIBIT  (32.2)

                             HARLEYSVILLE GROUP INC.

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In  connection  with  the  Quarterly  Report  of  Harleysville  Group  Inc. (the
"Company")  on  Form  10-Q for the period ended June 30, 2005, as filed with the
Securities  and Exchange Commission on the date hereof (the "Report"), I, Arthur
E.  Chandler,  Chief  Financial  Officer of the Company, certify, pursuant to 18
U.S.C.  section  1350,  as adopted pursuant to section 906 of the Sarbanes-Oxley
Act  of  2002,  that  based  on  my  knowledge:

(1)  The  Report  fully  complies  with  the requirements of section 13(a) or
     15(d)  of  the  Securities  Exchange  Act  of  1934;  and

(2)  The information contained in the Report fairly presents, in all material
     respects,  the  financial  condition  and  results of operations of the
     Company.





Date:     August  2,  2005       /s/  ARTHUR  E.  CHANDLER
          -----------------     ---------------------------
                                Arthur  E.  Chandler
                                Senior  Vice  President and
                                Chief  Financial  Officer




Page 33