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

                      -----------------------------------

                                    FORM 10-Q


     QUARTERLY  REPORT  PURSUANT  TO  SECTION  13  OR  15  (d)  OF  THE
                         SECURITIES  EXCHANGE  ACT  OF  1934

For  the  quarterly  period  ended  MARCH  31,  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 May 2, 2005 30,320,636 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  -  March  31,  2005
     and  December 31, 2004                                             3

   Consolidated  Statements  of  Income  -  For  the
     three  months  ended  March  31,  2005  and  2004                  4

   Consolidated  Statement  of  Shareholders'  Equity -
     For the three months  ended  March  31,  2005                      5

   Consolidated  Statements  of  Cash  Flows  -
     For  the three months ended March  31,  2005  and  2004            6

   Notes  to  Consolidated  Financial  Statements                       7

   Management's  Discussion  and  Analysis  of  Financial
     Condition  and  Results  of  Operations                           14

   Quantitative  and  Qualitative  Disclosure  About
      Market Risk                                                      24

   Controls  and  Procedures                                           25


Part  II  -  Other  Information                                        26


Page  2




ITEM  1.  FINANCIAL  STATEMENTS

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










                                                               MARCH 31,        DECEMBER
                                                                 2005             2004
                                                              ----------       ----------
                                                              (Unaudited)
                     ASSETS
                     ------
                                                                         
Investments:
  Fixed maturities:
    Held to maturity, at amortized cost
      (fair value $501,188 and $517,434)                      $  492,260       $  499,487
    Available for sale, at fair value
      (cost $1,086,565 and $1,028,457)                         1,106,630        1,067,504
  Equity securities, at fair value
      (cost $112,034 and $110,495)                               148,975          150,249
  Short-term investments, at cost,
    which approximates fair value                                 75,347          113,822
  Fixed maturity securities on loan:
    Held to maturity, at amortized cost
      (fair value $967 and $1,966)                                   917            1,835
    Available for sale, at fair value
      (amortized cost $130,837 and $128,183)                     134,761          134,020
                                                              ----------       ----------
      Total investments                                        1,958,890        1,966,917

Cash                                                               2,893              328
Receivables:
  Premiums                                                       139,335          141,601
  Reinsurance (affiliate $372 and $390)                          182,872          193,209
  Accrued investment income                                       21,990           23,236
                                                              ----------       ----------
      Total receivables                                          344,197          358,046

Deferred policy acquisition costs                                102,271          100,755
Prepaid reinsurance premiums                                      32,331           32,675
Property and equipment, net                                       18,488           20,891
Deferred income taxes                                             62,065           53,137
Securities lending collateral                                    139,226          139,486
Other assets                                                      44,740           45,828
                                                              ----------       ----------
      Total assets                                            $2,705,101       $2,718,063
                                                              ==========       ==========

      LIABILITIES AND SHAREHOLDERS' EQUITY
      ------------------------------------
Liabilities:
  Unpaid losses and loss settlement expenses
    (affiliate $184,464 and $187,172)                         $1,343,517       $1,317,735
  Unearned premiums (affiliate $52,705 and $47,038)              445,088          441,697
  Accounts payable and accrued expenses                           76,481           99,098
  Securities lending obligation                                  139,226          139,486
  Debt (affiliate $18,500 and $18,500)                           119,625          119,625
  Due to affiliate                                                   277           12,498
                                                              ----------       ----------
      Total liabilities                                        2,124,214        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 31,704,753
    and 31,589,474 shares; outstanding
    30,306,844 and 30,19,565 shares                               31,705           31,589
  Additional paid-in capital                                     163,608          161,689
  Accumulated other comprehensive income                          26,641           42,051
  Retained earnings                                              384,113          377,282
  Deferred compensation                                             (693)            (200)
  Treasury stock, at cost, 1,397,909 shares                      (24,487)         (24,487)
                                                              ----------       ----------
       Total shareholders' equity                                580,887          587,924
                                                              ----------       ----------
       Total liabilities and shareholders' equity             $2,705,101       $2,718,063
                                                              ==========       ==========

See accompanying notes to consolidated financial statements.



Page  3




                        HARLEYSVILLE GROUP AND SUBSIDIARIES
                         CONSOLIDATED STATEMENTS OF INCOME
                                   (UNAUDITED)
                 FOR THE THREE MONTHS ENDED MARCH 31, 2005 AND 2004
                   (dollars in thousands, except per share data)






                                                                                       2005           2004
                                                                                     --------      --------
Revenues:
                                                                                             
  Premiums earned from affiliate, (ceded to affiliate, $183,450 and $181,176)        $206,680      $206,948
  Investment income, net of investment expense                                         21,761        21,642
  Realized investment gains                                                                          12,488
  Other income (affiliate $1,793 and $1,775)                                            4,283         4,564
                                                                                     --------      --------
    Total revenues                                                                    232,724       245,642
                                                                                     --------      --------
Losses and expenses:
  Losses and loss settlement expenses (ceded to affiliate, $132,020 and $139,685)     147,868       151,110
  Amortization of deferred policy acquisition costs                                    50,918        50,688
  Other underwriting expenses                                                          16,355        19,638
  Interest expense (affiliate $131 and $84)                                             1,620         1,577
  Other expenses                                                                        1,507         1,419
                                                                                     --------      --------
    Total expenses                                                                    218,268       224,432
                                                                                     --------      --------

    Income before income taxes                                                         14,456        21,210

Income taxes                                                                            2,474         4,717
                                                                                     --------      --------

    Net income                                                                       $ 11,982      $ 16,493
                                                                                     --------      --------
Per common share:
  Basic earnings                                                                     $    .40      $    .55
                                                                                     ========      ========

  Diluted earnings                                                                   $    .39      $    .55
                                                                                     ========      ========

  Cash dividend                                                                      $    .17      $    .17
                                                                                     ========      ========

See accompanying notes to consolidated financial statements.



Page  4




                        HARLEYSVILLE GROUP INC. AND SUBSIDIARIES
                     CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                                      (UNAUDITED)
                        FOR THE THREE MONTHS ENDED MARCH 31, 2005
                                (dollars in thousands)






                                               ACCUMULATED
                 COMMON STOCK       ADDITIONAL OTHER
              -------------------   PAID-IN    COMPREHENSIVE  RETAINED  DEFERRED      TREASURY
                SHARES    AMOUNT    CAPITAL    INCOME         EARNINGS  COMPENSATION  STOCK      TOTAL
              ----------  ------    ---------- -------------  --------  ------------  --------   --------
                                                                         
Balance,
 December 31,
 2004         31,589,474  $31,589   $161,689    $ 42,051      $377,282  $  (200)     $(24,487)   $587,924
                                                                                                 --------
Net income                                                      11,982                             11,982

Other compre-
 hensive income,
 net of tax:
  Unrealized
   investment
   losses, net of
   reclassification
   adjustment                                    (15,410)                                         (15,410)
                                                                                                 --------

Comprehensive
 loss                                                                                              (3,428)

Issuance of
 common stock    115,279      116      1,838                                                        1,954

Tax benefit
 from stock
 options
 exercised                                81                                                           81

Deferred
 compensation                                                              (493)                     (493)

Cash dividend
 paid                                                           (5,151)                            (5,151)
              ----------  -------   --------    -------       --------  -------       --------   --------

Balance at
 March 31,
 2005         31,704,753  $31,705   $163,608    $26,641       $384,113  $  (693)      $(24,487)  $590,887
              ==========  =======   ========    =======       ========  =======       ========   ========

See accompanying notes to consolidated financial statements.



Page  5




                        HARLEYSVILLE GROUP INC AND SUBSIDIARIES
                         CONSOLIDATED STATEMENTS OF CASH FLOWS
                                     (UNAUDITED)
                   FOR THE THREE MONTHS ENDED MARCH 31, 2005 AND 2004
                                   (in thousands)






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

Cash flows from operating activities:
                                                                          
  Net income                                                   $ 11,982         $ 16,493
  Adjustments to reconcile net income
    to net cash provided by operating activities:
      Change in receivables, unearned  premiums,
        prepaid reinsurance balances                             17,584           (9,820)
      Change in affiliate balance                               (12,221)         (12,857)
      Increase in unpaid losses and loss settlement expenses     25,782           31,900
      Deferred income taxes                                        (631)             804
      (Increase) decrease in deferred policy acquisition cost    (1,516)             149
      Amortization and depreciation                               1,401            1,406
      Gain on sale of investments                                                (12,488)
      Other, net                                                (12,748)          (4,393)
                                                              ---------        ---------
         Net cash provided by operating activities               29,633           11,194
                                                              ---------        ---------
Cash flows from investing activities:
  Fixed maturity investments:
    Purchases                                                   (98,560)         (43,304)
    Sales or maturities                                          36,074           54,690
  Equity securities:
    Purchases                                                    (1,539)          (7,096)
    Sales                                                                         14,183
  Net sales (purchases) of short-term investments                38,475          (37,280)
  Sale (purchase) of property  and equipment                      1,851             (195)
                                                              ---------        ---------
         Net cash used by investing activities                  (23,699)         (19,002)
                                                              ---------        ---------
Cash flows from financing activities:
  Issuance of common stock                                        1,782            1,259
  Dividends paid (to affiliate, $2,890 and $2,890)               (5,151)          (5,099)
                                                              ---------        ---------
         Net cash used by financing activities                   (3,369)          (3,840)
                                                              ---------        ---------
Increase (decrease) in cash                                       2,565          (11,648)

  Cash at beginning of period                                       328           13,430
                                                              ---------        ---------
  Cash at end of period                                        $  2,893         $  1,782
                                                               ========         ========

See accompanying notes to consolidated financial statements.



Page  6




                        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 months ended March 31,
2005  and  2004:


Page  7




                        HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                         (UNAUDITED)

                       NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                                         (Continued)







                                                                 FOR THE THREE MONTHS
                                                                   ENDED MARCH 31,
                                                                  2005          2004
                                                                 -------       -------
                                                                (in thousands, except
                                                                  per share data)
                                                                          
Net income, as reported                                           $11,982       $16,493
Plus:
   Stock-based employee compensation expense (benefit)
     included in reported net income, net of related
     tax effects                                                     (270)           43

Less:
   Total stock-based employee compensation expense determined
     under fair value based method for all awards, net of
     related tax effects                                             (212)         (749)
                                                                  -------       -------
Pro forma net income                                              $11,500       $15,787
                                                                  =======       =======
Basic earnings per share:
   As reported                                                    $   .40       $   .55
   Pro forma                                                      $   .38       $   .53

Diluted earnings per share:
   As reported                                                    $   .39       $   .55
   Pro forma                                                      $   .38       $   .53



     In  December 2004, the Financial Accounting Standards Board issued SFAS No.
123(R), "Share-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) on net income and earnings per share is not
currently  expected  to  be  materially  different  from  the  pro forma amounts
disclosed  above  which  includes  all  share-based payment transactions through
March  31,  2005.  The  impact  that any future share-based payment transactions
will  have  on our financial position or results of operations is not yet known.


Page  8




                        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 ENDED
                                                                       MARCH 31,
                                                                2005                 2004
                                                             ----------         ------------
                                                                 (in thousands, except
                                                                   per share data)
                                                                             
Numerator for basic and diluted earnings per share:
  Net income                                                       $11,982            $16,493
                                                                   =======            =======
Denominator for basic earnings per share--weighted
    average shares outstanding                                  30,253,967         29,960,760

Effect of stock incentive plans                                    145,379             87,375
                                                               -----------        -----------

Denominator for diluted earnings per share                      30,399,346         30,048,135
                                                                ==========         ==========
Basic earnings per share:                                         $    .40           $    .55
                                                                  ========           ========
Diluted earnings per share:                                       $    .39           $    .55
                                                                  ========           ========




     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
                                    ENDED MARCH 31,
                                    2005         2004
                                   -----        -----
                                     (in thousands)
                                          
Number of options                  1,298        1,413
                                   =====        =====



3  -  Reinsurance

     Premiums earned are net of amounts ceded of $21,909,000 and $21,578,000 for
the  three  months ended March 31, 2005 and 2004, respectively.  Losses and loss
settlement  expenses  are net of amounts ceded of $7,674,000 and $34,154,000 for
the  three  months ended March 31, 2005 and 2004, respectively.  Such amounts do
not  include  the  reinsurance  transactions  with  Mutual  under  the  pooling
arrangement.

     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


Page  9





                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                    (UNAUDITED)

                  NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                                    (Continued)


earthquakes,  terrorism  or  hurricanes,  and  supplements the existing external
catastrophe  reinsurance  program. Under the agreement, Harleysville Group ceded
premiums  earned of $2,075,000 and $1,997,000 and losses incurred of $61,000 and
$1,800,000  to  Mutual  for  the  three  months  ended  March 31, 2005 and 2004,
respectively.

     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  no  cash  tax payments in the first quarter of 2005.  Cash tax
refunds of $3,798,000 were received in the first quarter of 2004.  Cash interest
payments of $3,006,000 and $2,974,000 were made in the first quarter 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  10




                        HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                         (UNAUDITED)

                       NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                                         (Continued)


     Financial  data  by  segment  is  as  follows:




                                             FOR THE THREE MONTHS
                                                ENDED MARCH 31,
                                            2005             2004
                                          --------         --------
                                               (in thousands)
                                                     
Revenues:
  Premiums earned:
    Commercial lines                      $167,313         $162,320
    Personal lines                          39,367           44,628
                                          --------         --------
      Total premiums earned                206,680          206,948
    Net investment income                   21,761           21,642
    Realized investment gains                                12,488
    Other                                    4,283            4,564
                                          --------         --------
Total revenues                            $232,724         $245,642
                                          ========         ========

Income before income taxes:
  Underwriting income (loss):
    Commercial lines                      $(10,238)        $ (9,648)
    Personal lines                             417           (4,860)
                                          --------         --------
      SAP underwriting loss                 (9,821)         (14,508)
      GAAP adjustments                       1,360               20
                                          --------         --------
      GAAP underwriting loss                (8,461)         (14,488)
    Net investment income                   21,761           21,642
    Realized investment gains                                12,488
    Other                                    1,156            1,568
Income before income taxes                $ 14,456         $ 21,210
                                          ========         ========



6  -  Comprehensive  Income

     Comprehensive  income  for  the  three months ended March 31, 2005 and 2004
consisted  of  the  following  (all  amounts  are  net  of  taxes):


Page  11




                        HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                         (UNAUDITED)

                       NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                                         (Continued)




                                                             FOR THE THREE MONTHS
                                                                ENDED MARCH 31,
                                                             2005             2004
                                                           ---------         -------
                                                                (in thousands)
                                                                        
Net income                                                 $ 11,982           $16,493
Other comprehensive income (loss):
  Unrealized investment holding gains (losses)
    arising during period                                   (15,410)           10,721

Less:
  Reclassification adjustment for gains included
    in net income                                                              (8,093)
                                                           --------           -------
  Net unrealized investment gains (losses)                  (15,410)            2,628
                                                           --------           -------
  Comprehensive income (loss)                              $ (3,428)          $19,121
                                                           ========           =======




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
                                                           ENDED MARCH 31,
                                                       2005             2004
                                                      ------           -------
                                                          (in thousands)
Components of net periodic pension cost:
                                                                 
  Service cost                                        $ 2,209           $ 1,993
  Interest cost                                         2,988             2,770
  Expected return on plan assets                       (2,790)           (3,020)
  Recognized net actuarial loss                         1,112               518
  Amortization of prior service cost                       52                52
  Net transition amortization                              13                12
                                                      -------           -------
Net periodic pension cost:
  Entire plan                                         $ 3,584           $ 2,325
                                                      =======           =======
  Harleysville Group portion                          $ 2,375           $ 1,533
                                                      =======           =======





     Harleysville  Group's  expected  portion  of  the  2005 contribution to the
pension plan is $8,015,000. Contributions of $1,999,000 were made in the quarter
ended  March  31,  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


Page  12




                        HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES
                                   (UNAUDITED)

                       NOTES  TO  CONSOLIDATED  FINANCIAL  STATEMENTS
                                         (Continued)


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  13




                   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  14




                   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

     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  15




                   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


Page  16




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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


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  March  31,  2005  and 2004 is discussed in greater detail below.

Results  of  Operations

     Premiums  earned decreased $0.3 million during the three months ended March
31,  2005 as compared to the three months ended March 31, 2004.  The decrease is
primarily  due  to  a  decrease  of $5.3 million in premiums earned for personal
lines  partially  offset  by  an  increase  of  $5.0 million in commercial lines
premiums  earned.  The  decline in premiums earned for personal lines was 11.8%,
primarily  due  to  fewer policy counts.  The reduction in personal lines volume
was  driven  primarily  by  a reduction in personal automobile business from the
continued implementation of more stringent underwriting processes.  The increase
in premiums earned for commercial lines was 3.1%, primarily due to higher rates.

     Investment  income  increased $0.1 million for the three months ended March
31,  2005 primarily due to a higher level of invested assets partially offset by
a  lower  yield  on  the  fixed  maturity  investment  portfolio.

     Realized  investment  gains  decreased  $12.5  million for the three months
ended  March  31,  2005  compared to the same prior year quarter.  There were no
sales  of  investment  securities  in  the  first quarter of 2005.  The decrease
primarily  resulted from gains on the sale of two equity securities in the first
quarter  of  2004.


Page  17




                   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 March 31,
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         $137,221    $ 2,244      $2,127       $  117

Obligations of states and
  political subdivisions             169,601      3,244       2,042        1,202

Corporate securities                 228,423      6,085       3,832        2,253

Mortgage-backed securities            43,212        447         447
                                    --------    -------      ------       ------
    Total fixed maturities          $578,457    $12,020      $8,448       $3,572
                                    ========    =======      ======       ======
    Equity securities               $ 18,495    $ 2,021      $2,021       $
                                    ========    =======      ======       ======




     There  are  eleven  positions  that  comprise the unrealized loss in equity
investments  at  March 31, 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 March 31,
2005,  securities  with a fair value of $412.3 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 $166.2 million and an
unrealized  loss  of  $3.4  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 $69.6 million in fixed
maturity  securities,  at  fair  value,  that  at March 31, 2005, had been below
amortized cost for over twelve months.  Of the $3.6 million of unrealized losses
on  such  securities, $1.9 million relates to securities which carry A or higher
debt  ratings  and  have  declined  in  fair  value  roughly in line with market
interest  rate  changes.  The  remaining  $1.7  million of unrealized losses are
comprised  of  airline  enhanced equipment trust certificates (EETC) as follows:


Page  18




                   HARLEYSVILLE  GROUP  INC.  AND  SUBSIDIARIES

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





                                         FAIR         MATURITY

                        COST             VALUE          DATES
                       --------         -------       ---------
                                   (in thousands)
                                               
American Airlines       $14,367         $13,385         2011
United Airlines           6,933           6,344         2010-2012
Other airlines            2,000           1,892         2011
                        -------         -------
                        $23,300         $21,621
                        =======         =======



     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.

     In  the  first quarter of 2005, Harleysville Group had income before income
taxes  of $14.5 million, compared to $21.2 million in the first quarter of 2004.
The  decrease in income before income taxes of $6.8 million for the three months
ended  March 31, 2005, as compared to the same period in 2004, was primarily due
to  the  decreased  realized  investment  gains,  partially  offset  by improved
underwriting  results.  The improved underwriting results in 2005 primarily were
due  to  lesser  loss  severity,  lesser  catastrophe losses and lower expenses.
Other  underwriting  expenses  declined  $3.3  million  primarily due to a lower
number of employees.  Catastrophe losses were $ 1.0 million and $2.6 million for
the  three  months  ended  March  31,  2005  and  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
104.2%  for  the  three  months  ended  March 31, 2005 from 107.2% for the three
months  ended  March  31,  2004.  Such  decrease  was due to better underwriting
results  in  both  commercial  lines  and  personal  lines.


Page  19




                   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 months
ended March 31, 2005, as compared to the three months ended March 31, 2004, were
as  follows:





                                       FOR  THE  THREE  MONTHS

                                          ENDED MARCH 31,
                                        --------------------
                                         2005          2004
                                        ------        ------
                                                
Commercial:
  Automobile                            100.1%        103.1%
  Workers compensation                  125.7%        122.9%
  Commercial multi-peril                105.2%        105.1%
  Other commercial                       84.9%         81.7%
   Total commercial                     104.3%        104.7%

Personal:
  Automobile                            106.1%        118.3%
  Homeowners                            102.9%        109.3%
  Other personal                         87.8%        147.6%
    Total personal                      103.7%        116.2%

      Total personal and commercial     104.2%        107.2%



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







                                            MARCH 31,        DECEMBER 31,
                                              2005               2004
                                          ----------         ------------
                                                  (in thousands)
                                                       
Commercial:
  Automobile                              $  258,322         $  249,044
  Workers compensation                       302,314            298,994
  Commercial multi-peril                     392,343            371,247
  Other commercial                            74,194             70,535
                                          ----------         ----------
    Total commercial                       1,027,173            989,820
                                          ----------         ----------

Personal:
  Automobile                                 100,836            103,050
  Homeowners                                  38,312             37,026
  Other personal                               1,754              1,713
                                          ----------         ----------
     Total personal                          140,902            141,789
                                          ----------         ----------
      Total personal and commercial        1,168,075          1,131,609

Plus reinsurance recoverables                175,442            186,126
                                          ---------          ----------

      Total liability                     $1,343,517         $1,317,735
                                          ==========         ==========



Page  20




                   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 104.3% for the
three  months  ended March 31, 2005 from 104.7% for the three months ended March
31, 2004.  The decrease is primarily due to a decrease in the combined ratio for
commercial  automobile  primarily  due  to  lower  loss  severity.

     There  was  $6.0  million of net favorable development in the provision for
insured events in prior years for the three months ended March 31, 2005 of which
$3.7  million  was  in  commercial lines and $2.3 million was in personal lines.
Approximately  half  of  the  favorable development related to the liability for
loss  adjusting expenses.  The remaining favorable development primarily related
to  the  2004  accident  year  in the property lines partially offset by adverse
development  in  prior  accident  years.

     There  was  $0.6  million of net favorable development in the provision for
insured  events  in prior years for the three months ended March 31, 2004.  This
was  net  of  $3.1 million of adverse development in commercial automobile which
was  more  than  offset  by  favorable  development  in  other  lines.

     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 THREE MONTHS     FOR THE YEAR ENDED
                                         ENDED MARCH 31, 2005      DECEMBER 31, 2004
                                                      (dollars in thousands)
                                         --------------------     ------------------
                                                               
Number of claims pending,
   beginning of period                           6,832                  8,005
Number of claims reported                        2,213                 10,632
Number of claims settled or dismissed           (2,354)               (11,805)
Number of claims pending, end of period          6,691                  6,832
                                               =======               ========
Losses paid                                    $16,470               $ 73,548
Loss settlement expenses paid                  $ 3,738               $ 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. Actuarial loss reserving
techniques  and assumptions, which rely on historical information as adjusted to
reflect  current  conditions,  have  been  consistently applied, after including
consideration  of  recent  case  reserve activity, 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  21




                   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 gives 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.  The slowing rate of
settlement  began  to  stabilize  in  2004.  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  March  31, 2005.  For every 1% change in the estimate, the
effect  on  pre-tax  income  would  be  $11.7  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 103.7% for the
three  months  ended March 31, 2005 from 116.2% for the three months ended March
31,  2004.  The  decrease  primarily  was due to lesser catastrophe losses which
affected  the  homeowners  line, and lower loss severity in personal automobile.

     Net  catastrophe  losses  decreased $1.6 million and losses ceded under the
aggregate  catastrophe  reinsurance agreement with Mutual decreased $1.7 million
for  the  three  months ended March 31, 2005, due to less severe catastrophes in
the  2005  period.

     The  income tax expense for each of the three month periods ended March 31,
2005  and  2004  includes  a  tax  benefit  of  $2.6  million  and $2.7 million,
respectively,  related  to  tax-exempt  investment  income.


Page  22




                   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 $29.6 million and $11.2 million of net cash
for  the  three  months ended March 31, 2005 and 2004, respectively.  The change
primarily  is  from an increase in net cash provided by underwriting activities.

     Investing  activities  used $23.7 million and $19.0 million of net cash for
the  three  months ended March 31, 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.

     Financing activities used $3.4 million and $3.8 million of net cash for the
three  months  ended  March  31,  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 March 31,
2005,  Harleysville  Group  held  cash  collateral  of $139.2 million related to
securities  on  loan with a market value of $135.7 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. had $17.5 million of cash and marketable securities
at  March  31,  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  March  31,  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  23




                   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 March 31,
2005.  In addition, the Company has maintained approximately the same investment
mix  during  this  period.


Page  24




                   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
     controls and procedures related to our reporting and disclosure obligations
     as of  March 31, 2005,  which  is  the end of  the period  covered  by this
     quarterly report on Form 10-Q. Based on that evaluation, the chief executiv
     officer and chief financial officer have concluded  that  these  disclosure
     controls  and  procedures are  sufficient  to  provide  that   (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 first quarter of 2005 that has materially affected, or
     is reasonably likely to materially  affect,  the Company's internal control
     over financial reporting.


Page  25




                    HARLEYSVILLE GROUP INC. AND SUBSIDIARIES

                         PART  II.    OTHER  INFORMATION

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.  1350,  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:  May  4,  2005                      By:   /s/  ARTHUR  E.  CHANDLER
       -------------                           ------------------------------
                                               Arthur  E.  Chandler
                                               Senior  Vice  President  and
                                               Chief  Financial  Officer
                                              (principal  financial  officer)


Page  26




     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  conditions, 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(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:       May  4,  2005            /s/  MICHAEL  L.  BROWNE
          -----------------       -------------------------------------------
                                  Michael  L.  Browne
                                  Chief  Executive  Officer  and  a  Director


Page  27






     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  conditions, 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(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:       May  4,  2005            /s/  ARTHUR E. CHANDLER
          -----------------       ----------------------------
                                  Arthur E. Chandler
                                  Senior Vice President and
                                  Chief Financial Officer


Page  28




     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 March 31, 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:     May  4,  2005           /s/  MICHAEL  L.  BROWNE
        -----------------        -------------------------------------------
                                 Michael  L.  Browne
                                 Chief  Executive  Officer  and  a  Director


Page  29




     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 March 31, 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:     May  4,  2005                   /s/  ARTHUR  E.  CHANDLER
        -----------------                -----------------------------
                                         Arthur  E.  Chandler
                                         Senior  Vice  President  and
                                         Chief  Financial  Officer


Page  30