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  SEPTEMBER  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  Exchange  Act).  Yes  X    No    .

    Indicate  by  check  mark  whether  Registrant  is  a shell company (as
defined  in  Rule  12b-2  of  the  Exchange  Act).  Yes       No  X.

    At  October  31, 2005,  30,512,001 shares of common stock of Harleysville
Group  Inc.  were  outstanding.




                 HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                      INDEX

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

Part  I  -  Financial  Information

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

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

  Consolidated  Statements  of  Income  -  For  the  nine
    months ended  September  30,  2005  and  2004                5

  Consolidated  Statement  of  Shareholders'  Equity  -
    For  the  nine  months  ended  September  30,  2005          6

  Consolidated  Statements  of  Cash  Flows  - For the
    nine  months  ended  September  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                                                27

  Controls  and  Procedures                                     28


Part  II  -  Other  Information                                 29


Page  2




ITEM  1.  FINANCIAL  STATEMENTS

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







                                                        SEPTEMBER 30,    DECEMBER 31,
                                                            2005            2004
                                                        -------------    ------------
                                                         (Unaudited)
                      ASSETS
                                                                    
Investments:
   Fixed maturities:
     Held to maturity, at amortized cost
        (fair value $481,054 and $517,434)               $  473,532       $  499,487
     Available for sale, at fair value (cost
        $1,182,955 and $1,028,457)                        1,200,140        1,067,504
   Equity securities, at fair value (cost
      $138,513 and $110,495)                                177,085          150,249
   Short-term investments, at cost, which
      approximates fair value                                64,945          113,822
   Fixed maturity securities on loan:
      Held to maturity, at amortized cost
           (fair value $5,029 and $1,966)                     4,958            1,835
      Available for sale, at fair value
         (amortized cost $110,329 and $128,183)             112,726          134,020
                                                         ----------       ----------
            Total investments                             2,033,386        1,966,917

Cash                                                          3,671              328
Receivables:
   Premiums                                                 143,476          141,601
   Reinsurance (affiliate $314 and $390)                    229,448          193,209
   Accrued investment income                                 22,376           23,236
                                                         ----------       ----------
            Total receivables                               395,300          358,046

Deferred policy acquisition costs                           106,603          100,755
Prepaid reinsurance premiums                                 34,884           32,675
Property and equipment, net                                  17,981           20,891
Deferred income taxes                                        63,130           53,137
Securities lending collateral                               121,393          139,486
Due from affiliate                                           15,885
Other assets                                                 45,416           45,828
                                                         ----------       ----------
            Total assets                                 $2,837,649       $2,718,063
                                                         ==========       ==========

               LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
   Unpaid losses and loss settlement expenses
      (affiliate $183,314 and $187,172)                  $1,448,538       $1,317,735
   Unearned premiums (affiliate $50,239 and $47,038)        455,645          441,697
   Accounts payable and accrued expenses                     89,328           99,098
   Securities lending obligation                            121,393          139,486
   Debt (affiliate $18,500 and $18,500)                     119,060          119,625
   Due to affiliate                                                           12,498
                                                         ----------       ----------
            Total liabilities                             2,233,964        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 31,909,360 and
      31,589,474 shares; outstanding 30,511,451
      and 30,191,565 shares                                  31,909           31,589
   Additional paid-in capital                               167,704          161,689
   Accumulated other comprehensive income                    24,837           42,051
   Retained earnings                                        404,582          377,282
   Deferred compensation                                       (860)            (200)
   Treasury stock, at cost, 1,397,909 shares                (24,487)         (24,487)
                                                         ----------       ----------
            Total shareholders' equity                      603,685          587,924
                                                         ----------       ----------
            Total liabilities and shareholders' equity   $2,837,649       $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 SEPTEMBER 30, 2005 AND 2004
                  (dollars  in thousands, except per share  data)







                                                             2005            2004
                                                           --------         -------
Revenues:
                                                                      
   Premiums earned from affiliate, (ceded to
     affiliated, $188,750 and $188,868)                    $212,327         $212,641
   Investment income, net of investment expense              23,064           21,499
   Realized investment gains (losses), net                       (1)             104
   Other income (affiliate $1,719 and $1,755)                 3,811            4,024
                                                           --------         --------
          Total revenues                                    239,201          238,268
                                                           --------         --------
Losses and expenses:
   Losses and loss settlement expenses from affiliate
     (ceded to affiliate, $120,513 and $129,248)            139,078          153,944
   Amortization of deferred policy acquisition costs         53,163           52,150
   Other underwriting expenses                               22,851           18,154
   Interest expense (affiliate $177 and $100)                 1,660            1,587
   Other expenses                                             1,036            2,764
                                                           --------         --------
          Total expenses                                    217,788          228,599
                                                           --------         --------
          Income before income taxes                         21,413            9,669
Income taxes                                                  4,972              789
                                                           --------         --------
          Net income                                       $ 16,441         $  8,880
                                                           ========         ========

Per common share:

   Basic earnings                                          $    .54         $    .30
                                                           =========        ========

   Diluted earnings                                        $    .54         $    .29
                                                           =========        ========
   Cash dividend                                           $   .175         $    .17
                                                           =========        ========


See  accompanying  notes  to  consolidated  financial  statements.


Page  4




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

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







                                                             2005             2004
                                                           --------         --------
Revenues:
                                                                      
   Premiums earned from affiliate, (ceded to
     affiliate, $559,191 and  $553,663)                    $628,872         $627,241
   Investment income, net of investment expense              67,403           64,578
   Realized investment gains, net                                67           12,651
   Other income (affiliate $5,220 and $5,210)                12,252           12,259
                                                           --------         --------
          Total revenues                                    708,594          716,729
                                                           --------         --------
Losses and expenses:
   Losses and loss settlement expenses from affiliate
     (ceded to affiliate, ($377,018 and $391,030)           430,943          453,765
   Amortization of deferred policy acquisition costs        156,124          153,536
   Other underwriting expenses                               57,984           57,518
   Interest expense (affiliate $485 and $268)                 4,945            4,730
   Other expenses                                             4,306            5,449
                                                           --------         --------
          Total expenses                                    654,302          674,998
                                                           --------         --------
          Income before income taxes                         54,292           41,731
Income taxes                                                 11,342            6,630
                                                           --------         --------
          Net income                                       $ 42,950         $ 35,101
                                                           ========         ========
Per common share:

   Basic earnings                                          $   1.42         $   1.17
                                                           ========         ========
   Diluted earnings                                        $   1.41         $   1.17
                                                           ========         ========
   Cash dividend                                           $   .515         $    .51
                                                           ========         ========


See  accompanying  notes  to  consolidated  financial  statements.


Page  5








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

                     FOR THE NINE MONTHS ENDED SEPTEMBER 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                                                             42,950                            42,950
Other comprehensive
 income, net of tax:
  Unrealized
   investment
   losses, net of
   reclassification
   adjustment                                          (17,214)                                         (17,214)
                                                                                                       --------
Comprehensive
 income                                                                                                  25,736
Issuance of common
 stock                  319,886      320     5,715                                                        6,035
Tax benefit from
 stock options
 exercised                                     300                                                          300
Deferred compensation                                                             (660)                    (660)

Cash dividends                                                        (15,650)                          (15,650)
                     ----------  -------  --------    --------       --------    -----      --------   --------
Balance at
 September 30, 2005  31,909,360  $31,909  $167,704    $ 24,837       $404,582    $(860)     $(24,487)  $603,685
                     ==========  =======  ========    ========       ========    =====      ========   ========



See  accompanying  notes  to  consolidated  financial  statements.


Page  6




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

              FOR  THE  NINE  MONTHS  ENDED SEPTEMBER 30, 2005 AND 2004
                                (in thousands)






                                                                    2005            2004
                                                                  --------        ---------

Cash flows from operating activities:
                                                                           
  Net income                                                     $  42,950       $  35,101
   Adjustments to reconcile net income
     to net cash provided by operating activities:
        Change in receivables, unearned  premiums and
          prepaid reinsurance balances                             (25,515)           (266)
        Change in affiliate balance                                (28,383)        (23,017)
        Increase in unpaid losses and loss settlement expenses     130,803          60,843
        Deferred income taxes                                         (724)         (1,518)
        Increase in deferred policy acquisition costs               (5,848)         (4,343)
        Amortization and depreciation                                3,955           4,017
        Gain on sale of investments                                    (67)        (12,651)
        Other, net                                                  (1,245)         12,029
                                                                 ---------       ---------
            Net cash provided by operating activities              115,926          70,195
                                                                 ---------       ---------
Cash flows from investing activities:
  Fixed maturity investments:
    Purchases                                                     (217,595)       (157,879)
    Sales or maturities                                             90,343         151,491
  Equity securities:
    Purchases                                                      (55,873)        (25,447)
    Sales                                                           31,343          25,064
  Net sales (purchases) of short-term investments                   48,877         (62,801)
  Sale (purchase) of property  and equipment, net                    1,357            (818)
                                                                 ---------       ---------
            Net cash used by investing activities                 (101,548)        (70,390)
                                                                 ---------       ---------
Cash flows from financing activities:
  Issuance of common stock                                           5,180           3,635
  Repayment of debt obligations                                       (565)           (520)
  Dividend paid (to affiliate, $8,756 and $8,671)                  (15,650)        (15,313)
                                                                 ---------       ---------
            Net cash used by financing activities                  (11,035)        (12,198)
                                                                 ---------       ---------
Increase (decrease)  in cash                                         3,343         (12,393)
  Cash at beginning of period                                          328           3,430
                                                                 ---------       ---------
  Cash at end of period                                          $   3,671       $   1,037
                                                                 =========       =========


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 (consisting of
only  normal  recurring  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 nine months ended
September  30,  2005  and  2004:


Page  8




           HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                            (UNAUDITED)

           NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                            (Continued)






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

                                                                         
Net income, as reported                        $16,441     $8,880        $42,950     $35,101
Plus:
  Stock-based employee compensation
    expense included in reported net
    income, net of related tax effects             354        199             27         253

Less:
  Total stock-based employee compensation
    expense determined under fair value
    based method for all awards, net of
    related tax effects                           (760)      (764)        (1,607)     (2,216)
                                               -------    -------        -------     -------
Pro forma net income                           $16,035     $8,315        $41,370     $33,138
                                               =======     ======        =======     =======
Basic earnings per share:
     As reported                               $   .54     $  .30        $  1.42     $  1.17
     Pro forma                                 $   .53     $  .28        $  1.36     $  1.10
Diluted earnings per share:
     As reported                               $   .54     $  .29        $  1.41     $  1.17
     Pro forma                                 $   .52     $  .28        $  1.36     $  1.10




     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 NINE MONTHS
                                               ENDED SEPTEMBER 30,       ENDED SEPTEMBER 30,
                                                 2005       2004          2005        2004
                                               -------     ------        -------     -------
                                                  (in thousands, except  per share data)

                                                                         

Numerator for basic and diluted earnings
  per share:
     Net income                                $16,441     $ 8,880       $42,950     $35,101
                                               =======      =======      =======     =======
Denominator for basic earnings per share --
   weighted average shares outstanding          30,428       30,063       30,330      29,995
Effect of stock incentive plans                    161           90          156          96
                                               -------      -------      -------     -------
Denominator for diluted earnings per share      30,589       30,153       30,486      30,091
                                               =======      =======      =======     =======
Basic earnings per share                       $   .54      $   .30      $  1.42     $  1.17
                                               =======      =======      =======     =======
Diluted earnings per share                     $   .54      $   .29      $  1.41     $  1.17
                                               =======      =======      =======     =======




     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 NINE MONTHS
                                    ENDED SEPTEMBER 30,    ENDED SEPTEMBER 30,
                                     2005      2004          2005      2004
                                    ------     -----         -----     -----
                                                 (in thousands)

Number of options                   1,184      1,608         1,184     1,608
                                    =====      =====         =====     =====


Page  10




           HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                            (UNAUDITED)

           NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                            (Continued)

3  -  Reinsurance

     Premiums earned are net of amounts ceded of $24,711,000 and $70,538,000 for
the  three  and  nine  months  ended   September  30,  2005,  respectively,  and
$22,051,000  and  $66,108,000  for the three and nine months ended September 30,
2004,  respectively.  Losses  and  loss  settlement  expenses are net of amounts
ceded  of  $71,856,000  and  $83,052,000  for  the  three  and nine months ended
September  30, 2005, respectively, and $13,592,000 and $53,308,000 for the three
and  nine  months  ended  September  30,  2004,  respectively.  Losses  and loss
settlement expenses ceded for the three and nine months ended September 30, 2005
include  $67,566,000 and $74,866,000 of losses ceded to the federal government's
National  Flood Insurance Program (NFIP), primarily related to flood losses from
Hurricane  Katrina.  Reinsurance receivables include $65,869,000 and $22,389,000
at  September  30,  2005  and  December 31, 2004, respectively, for flood losses
recoverable  from  the  NFIP.  Since such flood losses are entirely ceded to the
NFIP  they  did  not  impact  results  of operations.  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.

     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 $2,196,000 and $2,164,000
and  losses  incurred  of  $(24,000)  and $(440,000), for the three months ended
September  30,  2005 and 2004, respectively.  Harleysville Group ceded to Mutual
premiums  earned  of $6,607,000 and $6,424,000 and losses incurred of $(114,000)
and  $544,000   for  the  nine  months   ended  September  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

     Net  cash  tax payments (refunds) of $8,600,000 and $(13,709,000) were made
(received)  in  the  first  nine  months  of  2005 and 2004, respectively.  Cash
interest  payments  of  $6,245,000  and  $6,043,000  were made in the first nine
months  of  2005  and  2004,  respectively.


Page  11




           HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                            (UNAUDITED)

           NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                            (Continued)


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).

     Financial  data  by  segment  is  as  follows:







                                            FOR THE THREE MONTHS       FOR THE NINE MONTHS
                                             ENDED SEPTEMBER 30,       ENDED SEPTEMBER 30,
                                               2005       2004          2005        2004
                                             -------     ------        -------     -------
                                                             (in thousands)
Revenues:
  Premiums earned:
                                                                       
    Commercial lines                        $173,948     $169,680      $512,119    $495,791
    Personal lines                            38,379       42,961       116,753     131,450
                                            --------     --------      --------    --------
       Total premiums earned                 212,327      212,641       628,872     627,241
    Net investment income                     23,064       21,499        67,403      64,578
    Realized investment gains (losses)            (1)         104            67      12,651
    Other                                      3,811        4,024        12,252      12,259
                                            --------     --------      --------    --------
Total revenues                              $239,201     $238,268      $708,594    $716,729
                                            ========     ========      ========    ========
Income before income taxes:
    Underwriting gain (loss):
      Commercial lines                      $ (5,742)    $(13,517)     $(25,740)   $(39,523
      Personal lines                           2,497          344         4,028      (4,506)
                                            --------     --------      --------    --------
        SAP underwriting loss                 (3,245)     (13,173)      (21,712)    (44,029)
        GAAP adjustments                         480        1,566         5,533       6,451
                                            --------     --------      --------    --------
        GAAP underwriting loss                (2,765)      11,607)      (16,179)    (37,578)
      Net investment income                   23,064       21,499        67,403      64,578
      Realized investment gains (losses)          (1)         104            67      12,651
      Other                                    1,115         (327)        3,001       2,080
                                            --------     --------      --------    --------
Income before income taxes                  $ 21,413     $  9,669      $ 54,292    $ 41,731
                                            ========     ========      ========    ========




Page  12




           HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                            (UNAUDITED)

           NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                            (Continued)


6  -  Comprehensive  Income

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







                                            FOR THE THREE MONTHS       FOR THE NINE MONTHS
                                             ENDED SEPTEMBER 30,       ENDED SEPTEMBER 30,
                                               2005        2004          2005        2004
                                             -------     -------       --------    --------
                                                             (in thousands)

                                                                       
Net income                                  $ 16,441     $ 8,880       $ 42,950    $ 35,101
Other comprehensive income (loss):
  Unrealized investment holding gains
    (losses) arising during period           (11,363)      8,152        (17,170)     (6,449)
Less:
  Reclassification adjustment for gains
    included in net income                                   (65)           (44)     (8,196)
                                            --------     -------       --------    --------
Net unrealized investment gains (losses)     (11,363)      8,087        (17,214)    (14,645)
                                            --------     -------       --------    --------

Comprehensive income                        $  5,078     $16,967       $ 25,736    $ 20,456
                                            ========     =======       ========    ========




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 NINE MONTHS
                                             ENDED SEPTEMBER 30,       ENDED SEPTEMBER 30,
                                               2005       2004          2005        2004
                                             -------     ------        -------     -------
                                                             (in thousands)

                                                                       
Components of net periodic pension cost:
  Service cost                              $ 2,315      $ 2,007       $ 6,733     $ 5,992
  Interest cost                               2,986        2,821         8,962       8,361
  Expected return on plan assets             (3,018)      (3,101)       (8,598)     (9,141)
  Recognized net actuarial loss               1,134          600         3,358       1,635
  Amortization of prior service cost             52           52           156         157
  Net transition amortization                    13           14            40          39
                                            -------      -------       -------     -------
Net periodic pension cost:
  Entire plan                               $ 3,482      $ 2,393       $10,651     $ 7,043
                                            =======      =======       =======     =======
  Harleysville Group portion                $ 2,308      $ 1,589       $ 7,057     $ 4,658
                                            =======      =======       =======     =======





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 $5,963,000 were made in the nine
months  ended  September  30,  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
including  the  expenses  related  to  these  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

       -  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

       -  cash  available  for  investing  activities

     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.  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.


Page  17




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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


     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.

     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 September 30, 2005 and 2004 is discussed in greater detail below.

Results  of  Operations

     Premiums  earned  decreased  $0.3  million  during  the  three months ended
September  30,  2005,  and  increased  $1.6 million during the nine months ended
September  30,  2005,  compared  to the same prior year periods. The changes are
primarily  due  to  increases  in  premiums  earned for commercial lines of $4.3
million  and  $16.3  million  partially  offset by decreases of $4.6 million and
$14.7  million  in  personal lines premiums earned for the three and nine months
ended  September  30,  2005, respectively.  The increases in premiums earned for
commercial  lines  were  2.5%  and  3.3%  for  the  three  and nine months ended
September 30, 2005, respectively, primarily due to higher average premiums.  The
declines  in  premiums  earned  for  personal lines were 10.7% and 11.2% for the
three  and  nine months ended September 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.


Page  18




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

     Investment income increased $1.6 million and $2.8 million for the three and
nine  months  ended September 30, 2005, respectively, compared to the same prior
year  periods, resulting from an increase in invested assets partially offset by
a  lower  yield  on  the  fixed  maturity  investment  portfolio.

     Realized investment gains decreased $12.6 million for the nine months ended
September  30,  2005, as compared to the same period in the prior year, and were
essentially  unchanged  for  the  three  months  ended  September 30, 2005.  The
nine-month  decrease  primarily  resulted  from  gains on the sale of two equity
securities  in  the  first  quarter  of  2004.

     Harleysville Group holds securities with unrealized losses at September 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       $151,823    $ 1,708        $1,050      $  658
  Obligations of states and
    political subdivisions           161,013      2,976         1,373       1,603
  Corporate securities               238,094      5,850         3,078       2,772
  Mortgage-backed securities          83,496        846           754          92
                                    --------    -------        ------      ------
      Total fixed maturities        $634,426    $11,380        $6,255      $5,125
                                    ========    =======        ======      ======
      Equity securities             $ 20,627    $   756        $  756      $ -
                                    ========    =======        ======      ======




     There  are  20  positions  that  comprise  the  unrealized  loss  in equity
investments  at  September  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 September
30,  2005, securities with a fair value of $498.4 million and an unrealized loss
of  $8.6  million  are  classified as available for sale and are carried at fair
value  on the balance sheet while securities with a fair value of $136.0 million
and an unrealized loss of $2.8 million are classified as held to maturity on the
balance  sheet  and  are  carried  at  amortized  cost.


Page  19




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

     The  fixed  maturity investments with continuous unrealized losses for less
than  twelve  months  were  primarily  due  to  the  impact of the higher market
interest  rates  rather  than  a  decline  in  credit quality.  There are $139.5
million in fixed maturity securities, at fair value, that at September 30, 2005,
had  been  below  amortized cost for over twelve months.  Of the $5.1 million of
unrealized  losses  on such securities, $3.5 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 $1.6 million of unrealized
losses  are comprised of airline enhanced equipment trust certificates (EETC) as
follows:






                                   FAIR      MATURITY
                         COST      VALUE      DATES
                        -------    -----    ---------
                             (in thousands)
                                     
American Airlines       $14,370    $13,214    2011
United Airlines           6,925      6,578    2010-2012
Other airlines            2,000      1,935    2011
                        -------    -------
                        $23,295    $21,727
                        =======    =======



     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.
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 $11.7 million for the three months
ended  September 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 $12.6 million for the nine months
ended  September  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 and lesser
loss  severity.  Catastrophe  losses  were $2.4 million and $4.0 million for the
three  and  nine  months  ended September 30, 2005, respectively, as compared to
$6.1  million  and  $10. 0 million for the three and nine months ended September
30,  2004,  respectively.


Page  20




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

     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
102.5%  and  102.8%  for  the  three  and  nine months ended September 30, 2005,
respectively  from  106.6%  and  106.4%  for  the  three  and  nine months ended
September  30,  2004,  respectively.  Such  decreases  were  due  to  improved
underwriting  results  in  both  commercial  lines and personal lines, primarily
resulting from improved loss experience and lower catastrophe losses in the 2005
periods.  The  improved loss experience reflects lower claim severity in general
and  lower  claim  frequency  in  property  coverages.

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





                                      FOR THE THREE MONTHS    FOR THE NINE MONTHS
                                       ENDED SEPTEMBER 30,    ENDED SEPTEMBER 30,

                                         2005       2004        2005       2004
                                        ------     ------      ------     ------
Commercial:
                                                              
  Automobile                            104.5%     103.8%      100.8%     103.8%
  Workers compensation                  118.6%     131.2%      122.6%     125.4%
  Commercial multi-peril                101.0%     105.8%      102.0%     105.4%
  Other commercial                      102.5%     103.4%       95.9%      93.5%
    Total commercial                    104.7%     108.6%      103.9%     106.7%

Personal:
  Automobile                             98.1%     113.0%      102.8%     114.0%
  Homeowners                             88.8%      78.3%       94.5%      91.2%
  Other personal                         67.5%      88.0%       73.1%     103.8%
    Total personal                       92.8%      99.0%       97.9%     105.3%

      Total personal and commercial     102.5%     106.6%      102.8%     106.4%




Page  21




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

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








                                       SEPTEMBER 30,        DECEMBER 31,
                                           2005                2004
                                       ------------         ------------
                                                 (in thousands)

Commercial:
                                                      
  Automobile                           $  274,547           $  249,044
  Workers compensation                    306,137              298,994
  Commercial multi-peril                  423,390              371,247
  Other commercial                         82,584               70,535
                                       ----------           ----------
    Total commercial                    1,086,658              989,820
                                       ----------           ----------
Personal:
  Automobile                               96,782              103,050
  Homeowners                               39,351               37,026
  Other personal                            1,354                1,713
                                       ----------           ----------
    Total personal                        137,487              141,789
                                       ----------           ----------

      Total personal and commercial     1,224,145            1,131,609

Plus reinsurance recoverables             224,393              186,126
                                       ----------           ----------

    Total liability                    $1,448,538           $1,317,735
                                       ==========           ==========



     The  commercial  lines  statutory  combined  ratio  decreased to 104.7% and
103.9%  for  the  three  and nine months ended September 30, 2005, respectively,
from  108.6%  and 106.7% for the three and nine months ended September 30, 2004,
respectively.  The decreases were primarily due to lower loss severity and lower
property  losses.

     There  was  $11.7 million of net favorable development in the provision for
insured events in prior years for the nine months ended September 30, 2005 ($2.9
million  in  the  third quarter of 2005) of which $5.6 million was in commercial
lines  and $6.1 million was in personal lines. Approximately $4.4 million of the
$11.7  million of favorable development related to the liability for unpaid loss
settlement  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 $9.1 million of net adverse development in the
provision  for insured events in prior years for the nine months ended September
30,  2004  ($6.1  million  in  the  third  quarter  of  2004).


Page  22




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

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

                                                                        
Number of claims pending, beginning of period         6,832                      8,005
Number of claims reported                             7,093                     10,632
Number of claims settled or dismissed                (7,531)                   (11,805)
                                                    -------                   --------
Number of claims pending, end of period               6,394                      6,832
                                                    =======                   ========
Losses paid                                         $49,718                   $ 73,548
Loss settlement expenses paid                       $10,771                   $ 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.

     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 September 30, 2005. For every 1% change in the aggregate
estimate  across all lines, the effect on pre-tax income would be $12.2 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.


Page  23




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

     The  personal  lines  statutory combined ratio decreased to 92.8% and 97.9%
for the three and nine months ended September 30, 2005 from 99.0% and 105.3% for
the  three  and  nine  months ended September 30, 2004.  The decreases primarily
were  due  to  generally  lower  loss  severity.

     Net  catastrophe  losses  decreased  $3.7  million and $5.9 million for the
three  and  nine months ended September 30, 2005, respectively, primarily due to
less  severe catastrophes in the 2005 periods.  The three months ended September
30,  2004  includes  $6.1  million  of losses from weather related catastrophes,
primarily  four  hurricanes.

     The  income  tax  expense for the three and nine months ended September 30,
2005  includes  the tax benefit of $2.5 million and $7.7 million associated with
tax-exempt  income  compared  to $2.6 million and $8.0 million in the same prior
year  periods.

     Other  underwriting  expenses  increased  $4.7 million for the three months
ended  September  30,  2005 compared to the same prior year period.  A severance
charge  of $1.6 million was incurred during the three months ended September 30,
2005  related  to  ongoing  expense-reduction  initiatives.  An  estimated  $0.6
million  severance  charge  is  expected to be recorded in the fourth quarter of
2005  related  to  a  further  expense-reduction  initiative begun in the fourth
quarter.  The  remaining  increase  in  other  underwriting  expenses related to
higher  incentive  costs,  primarily  for  agents.

     Other  expense  decreased $1.7 million for the three months ended September
30,  2005 primarily related to the write-off of capitalized costs for a software
project  during  the  three  months  ended  September  30,  2004.

     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 $6.6 million and
$6.4 million and losses incurred of $(0.1) million and $0.5 million for the nine
months  ended  September  30,  2005  and  2004,  respectively.


Page  24




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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

Liquidity  and  Capital  Resources

     Operating  activities provided $115.9 million and $70.2 million of net cash
for the nine months ended September 30, 2005 and 2004, respectively.  The change
primarily  is  from  greater  underwriting cash flow primarily due to lower paid
losses.

     Investing  activities used $101.5 million and $70.4 million of net cash for
the  nine  months ended September 30, 2005 and 2004, respectively.  The increase
is  primarily  due  to an increase in net purchases of fixed maturity and equity
investments  partially  offset  by  a  decrease  in  the  purchase of short-term
investments.

     Financing  activities  used $11.0 million and $12.2 million of net cash for
the  nine months ended September 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 September
30,  2005,  Harleysville Group held cash collateral of $121.4 million related to
securities  on  loan with a market value of $117.8 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.


Page  25




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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


     Harleysville  Group  Inc.  maintained  $9.6  million of cash and marketable
securities  at  September  30,  2005  which  is  available for general corporate
purposes  including  dividends,  debt  service,  capital  contributions  to
subsidiaries,  acquisitions  and  the  repurchase  of  stock.


     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  26






                   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 September 30,
2005.  In addition, the Company has maintained approximately the same investment
mix  during  this  period.


Page  27




                   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 September 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  third  quarter of 2005 that  has materially  affected,  or  is
     reasonably likely to materially affect, the Company's internal control over
     financial  reporting.


Page  28




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

                         PART II.  OTHER INFORMATION


ITEM  6.    a.  Exhibits

            10.1   Settlement,  Non-solicitation  and  Release Agreement with
                   former  executive  officer.

            31.1   Certification of Chief Executive Officer Pursuant to  Rule
                   3a-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.  1350, as  Adopted Pursuant to Section 906  of  the
                   Sarbanes-Oxley  Act  of  2002.


Page  29




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

                         PART  II.  OTHER INFORMATION
                                  (Continued)


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

Page  30




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

Page  31




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

Page  32




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


Page  33




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


Page  34