Page 1 of 13
                                                         Exhibit Index on Page 2

                                   FORM 11-K

                                 UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


Annual Report Pursuant to Section 15(d) of the Securities Exchange Act
of 1934




(Mark One)

  [X]   ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES
        EXCHANGE ACT OF 1934.
             For the fiscal year ended:  December 31, 1998

  OR

  [ ]   TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
        ACT OF 1934.
             For the transition period from       to



Commission file number     1- 3208

  A.    Full title of the plan and the address of the plan, if
        different from that of the issuer named below:

        National Service Industries Retirement and 401(k) Plan

  B.    Name of issuer of the securities held pursuant to the plan and
        the address of the principal executive office:

        National Service Industries, Inc.
        1420 Peachtree Street, NE
        Atlanta, Georgia 30309



Page 2

REQUIRED INFORMATION

The following documents are filed as a part of this report:

1.   Financial Statements


     Plan  financial  statements  prepared  in  accordance  with  the  financial
     reporting requirements of ERISA include the following:

     Report of Independent Public Accountants

     Statements of Net Assets Available for Benefits, with Fund Information,  as
     of December 31, 1998 and 1997

     Statement of Changes in Net Assets Available for Benefits for
     the Year Ended December 31, 1998

     Notes to Financial Statements

2.   Exhibits
                                                             Sequentially
                                                               Numbered
     The following exhibit is filed with this report:            Page

     23     Consent of Arthur Andersen LLP                        13



SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
trustees (or other persons who administer  the employee  benefit plan) have duly
caused this annual report to be signed on its behalf by the undersigned hereunto
duly authorized.

                              National Service Industires
                              Retirement and 401(k) Plan

Date: June 30, 1999           By:   National Service Industries, Inc.
                                    Plan Administrator

                              By:    /s/ James S. Balloun
                              Name:  James S. Balloun
                              Title: Chairman and Chief Executive Officer


                                                                          Page 3
                           National Service Industries
                           Retirement and 401(k) Plan

              Financial Statements as of December 31, 1998 and 1997
                                  Together With
                                Auditors' Report



Page 4


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS




To the Plan Administrator of
National Service Industries
Retirement and 401(k) Plan:


We have audited the accompanying statements of net assets available for benefits
of NATIONAL  SERVICE  INDUSTRIES  RETIREMENT  AND 401(k) PLAN as of December 31,
1998 and 1997 and the related  statement of changes in net assets  available for
benefits,  with fund  information,  for the year ended December 31, 1998.  These
financial  statements  are the  responsibility  of the  Plan's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the net assets available for benefits of the Plan as of
December 31, 1998 and 1997 and the changes in net assets  available for benefits
for the year ended  December  31, 1998 in  conformity  with  generally  accepted
accounting principles.

Our audits  were  performed  for the  purpose of forming an opinion on the basic
financial  statements taken as a whole. The fund information in the statement of
changes in net assets  available  for benefits is  presented  for the purpose of
additional  analysis rather than to present the changes in net assets  available
for  benefits  of each fund.  The fund  information  has been  subjected  to the
auditing procedures applied in the audits of the basic financial statements and,
in our opinion,  is fairly  stated in all  material  respects in relation to the
basic financial statements taken as a whole.


                                               ARTHUR ANDERSEN LLP

Atlanta, Georgia
April 29, 1999



                                                                          Page 5

                           NATIONAL SERVICE INDUSTRIES

                           RETIREMENT AND 401(K) PLAN


                 STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS

                           DECEMBER 31, 1998 AND 1997






                                                                                                 


                                                                                          1998              1997
INVESTMENT IN NSI DC TRUST, at fair value (Notes 2 and 3)                            ------------       -----------
    Balanced Fund                                                                    $   266,963       $   209,107
    Diversified Equity Fund                                                              642,548           442,215
    Stable Value Fund                                                                    107,473            74,174
    NSI Stock Fund--participant-directed                                                 167,450           169,757
    Loan Fund                                                                             86,445            45,319
    International Fund                                                                    37,588            36,299
    Index Fund                                                                           116,907            45,951
    Small Company Fund                                                                    52,994            24,290
    NSI Stock Fund--nonparticipant-directed                                              246,126           225,092
                                                                                     ------------       -----------
              Total investment                                                         1,724,494         1,272,204
                                                                                     ------------       -----------
CONTRIBUTIONS RECEIVABLE -- EMPLOYER                                                            0             3,436
                                                                                     ------------       -----------
FUNDS PAYABLE:
    Employer                                                                             (11,002)                0
    Participant                                                                          (11,665)                0
                                                                                     ------------       -----------
              Total refunds payable                                                      (22,667)                0
                                                                                     ------------       -----------
NET ASSETS AVAILABLE FOR BENEFITS                                                    $ 1,701,827       $ 1,275,640
                                                                                     ============       ===========







     The accompanying notes are an integral part of these statements.



Page 6

                           NATIONAL SERVICE INDUSTRIES

                           RETIREMENT AND 401(K) PLAN

           STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS,

                             WITH FUND INFORMATION,

                      FOR THE YEAR ENDED DECEMBER 31, 1998




                                                                                        

                                                                                                      Nonparticipant-
                                                         Participant-Directed                            Directed
                         ------------------------------------------------------------------------------ ------------
                                   Diversified  Stable     NSI                                 Small     NSI
                          Balanced   Equity     Value     Stock    Loan     Int'l     Index   Company    Stock
                            Fund      Fund      Fund      Fund     Fund     Fund      Fund     Fund      Fund     Other      Total
                         -------- --------- --------- --------- -------- -------- --------- -------- --------- --------- ----------
CONTRIBUTIONS:
  Employer, net of
  forfeitures            $      0 $      0  $      0  $      0  $     0  $     0  $      0  $     0  $118,312  $(14,438) $  103,874
  Participant              51,319   88,803    28,824    47,538    9,410    6,278    45,074   20,999         0   (11,665)    286,580
                         -------- --------- --------- --------- -------- -------- --------- -------- --------- --------- ----------
     Total contributions   51,319   88,803    28,824    47,538    9,410    6,278    45,074   20,999   118,312   (26,103)    390,454

NET GAIN (LOSS) FROM
  INVESTMENT IN NSI DC
      TRUST (Note 3)       29,806  142,132     6,147   (36,663)       0     (447)   20,825    6,367   (50,341)        0     117,826

BENEFITS PAID TO
  PARTICIPANTS             (9,334) (27,596)   (1,175)  (15,662)  (2,167)  (1,475)   (1,289)    (333)  (23,062)        0     (82,093)

INTRAPLAN TRANSFERS       (13,935)  (3,006)     (497)    2,480   33,883   (3,067)    6,346    1,671   (23,875)        0           0
                         -------- --------- --------- --------- -------- -------- --------- -------- --------- --------- ----------
NET INCREASE (DECREASE)    57,856  200,333    33,299    (2,307)  41,126    1,289    70,956   28,704    21,034   (26,103)    426,187

NET ASSETS AVAILABLE FOR
  BENEFITS,
      December 31, 1997   209,107  442,215    74,174   169,757   45,319   36,299    45,951   24,290   225,092     3,436   1,275,640
NET ASSETS AVAILABLE FOR -------- --------- --------- --------- -------- -------- --------- -------- --------- --------- ----------
  BENEFITS,
      December 31, 1998  $266,963 $642,548  $107,473  $167,450  $86,445  $37,588  $116,907  $52,994  $246,126  $(22,667) $1,701,827
                         ======== ========= ========= ========= ======== ======== ========= ======== ========= ========= ==========





The accompanying notes are an integral part of this statement.



                                                                          Page 7


                           NATIONAL SERVICE INDUSTRIES

                           RETIREMENT AND 401(K) PLAN


                          NOTES TO FINANCIAL STATEMENTS

                           DECEMBER 31, 1998 AND 1997



  1.  PLAN DESCRIPTION

     The following is a brief  description  of the National  Service  Industries
     Retirement  and 401(k) Plan (the  "Plan") of National  Service  Industries,
     Inc. of Georgia and NSI Enterprises,  Inc. (together, the "Employer"). Both
     National Service Industries, Inc. of Georgia and NSI Enterprises,  Inc. are
     wholly owned  subsidiaries of National Service  Industries,  Inc.  ("NSI").
     This description is provided for informational purposes only.  Participants
     should refer to the plan agreement for more complete information.

     General

     The Plan is a defined contribution plan established under the provisions of
     Section  401(a) of the  Internal  Revenue  Code  ("IRC").  The Plan  covers
     nonunion,  full-time,  salaried employees of the Employer who have attained
     the age of 20.5 with at least six months of service and who are  classified
     by  the  Employer  as  corporate  office  personnel  or  treasury  function
     personnel. The Plan is subject to the provisions of the Employee Retirement
     Income Security Act of 1974, as amended.

     Contributions

     Participants  may  elect to  contribute  between  1% and 10% of  before-tax
     compensation,  as defined in the Plan, subject to certain limitations under
     the IRC. Matching contributions are made by the Employer in an amount equal
     to  50%  of  the  participant's  contribution  up to  the  lesser  of 4% of
     compensation or $1,000 in a plan year.  Effective January 1, 1998, matching
     contributions  are made by the  Employer  in an amount  equal to 50% of the
     participant's   contribution   up  to  6%   of   compensation.   Additional
     discretionary  amounts, as determined by the board of directors of NSI, may
     be contributed by the Employer and are allocated to each participant in the
     same proportion that each participant's annual compensation bears to annual
     compensation of all  participants or at the discretion of the Employer on a
     per capita basis.  No  discretionary  contributions  were made for the year
     ended December 31, 1998.

     Vesting

     Participants  are always  fully vested in their  individual  contributions.
     Vesting of employer  contributions  occurs on an increasing scale,  ranging
     from 10% vesting  after two years of service,  as defined,  to 100% vesting
     after seven years of service.  Effective January 1, 1998, vesting occurs at
     20% for each  year of  service,  with  100%  vesting  after  five  years of
     service.   Nonvested   employer   contributions   are   forfeited   upon  a
     participant's  withdrawal  from  the Plan  and are  used to  reduce  future
     employer contributions.

Page 8


     Administration

     All  administrative  expenses of the Plan were paid by the Employer  during
     the year ended December 31, 1998.

     Participants' Accounts

     Individual  accounts are maintained for each of the Plan's  participants to
     reflect that particular  participant's  contributions  and related employer
     contributions as well as the  participant's  share of the Plan's income and
     any related investment management fees and expenses.

     The Plan's investment fund balances are expressed in units. At December 31,
     1998 and 1997,  177,040 and 119,436 units,  respectively,  were assigned to
     plan participants.  Unit values for each investment fund were as follows at
     December 31, 1998 and 1997:


                                                              1998       1997
                                                            ---------  ---------
              Balanced Fund                                  $  37.82   $  33.18
              Diversified Equity Fund                           15.71      14.04
              Stable Value Fund                                 12.84      12.07
              NSI Stock Fund                                    15.47      19.61
              International Fund                                17.76       4.82
              Index Fund                                       112.85      89.56
              Small Company Fund                                11.58      11.21
              Bond Index Fund                                   11.16        N/A


     At December 31, 1998,  the Plan had $0  investment  in the Bond Index Fund.
     Thus, this fund is not presented in  the accompanying financial statements.

     Investment in Master Trust

     Under a trust agreement dated September 1, 1993, as amended,  Wachovia Bank
     of Georgia,  N.A.  was  appointed  trustee of the NSI Defined  Contribution
     Plan's  Master  Trust  (the "NSI DC  Trust").  Effective  January  1, 1998,
     INVESCO Trust Company was appointed trustee of the NSI DC Trust.

     The Plan's  assets are  commingled  in the NSI DC Trust  together  with the
     assets of certain defined  contribution  plans of other NSI divisions.  The
     investments  of the NSI DC Trust  are  subject  to  certain  administrative
     guidelines  and  limitations  as to type and  amount  of  securities  held.
     Certain  fund  assets are  allocated  to  selected  independent  investment
     managers to invest under these general guidelines.


                                                                          Page 9



     Investment Options

     The  separate  investment  options  made  available  under  the Plan may be
     changed,  eliminated,  or  modified  from  time to  time by the  investment
     committee of the NSI DC Trust. Participants make their investment elections
     in 5% increments,  with changes allowed on a daily basis.  Participants may
     not  direct  the   investment   of  employer   matching  or   discretionary
     contributions. These are invested in the NSI Stock Fund discussed below.

     The separate investment options offered by the Plan are as follows:

          o    Diversified  Equity Fund.  This fund is a diversified  stock fund
               designed  to invest in a broad range of common  stocks  providing
               capital growth.

          o    Stable  Value  Fund.  This is a fixed  income  fund  designed  to
               provide  a steady  level of  current  income  while  focusing  on
               preservation of principal.  This fund is managed by INVESCO Trust
               Company or its affiliates.

          o    Balanced  Fund.  This  fund  is  invested  in a  changing  mix of
               high-quality  stocks and bonds.  The fund is  designed to provide
               capital  growth and current  income  while  limiting  the risk of
               principal  loss. This fund is managed by INVESCO Trust Company or
               its affiliates.

          o    NSI  Stock  Fund.  This fund is  invested  in NSI  common  stock,
               although it may hold other  short-term  investments  from time to
               time.  A  participant  may not  direct  more than 50% of  his/her
               account balance to be invested in this fund.

          o    International  Fund.  This  fund  is  invested  in the  stock  of
               non-U.S.  companies and is designed to provide  long-term growth.
               During 1998, the investment committee of the NSI DC Trust changed
               the specific asset fund which serves as this investment option.

          o    Index Fund.  This fund (offered  beginning June 1997) is invested
               in all of the stocks in the Standard & Poor's 500 Composite Stock
               Price Index.

          o    Small Company Fund.  This fund (offered  beginning  June 1997) is
               invested in small or emerging  companies  that show potential for
               increased  size and  profitability.  The fund seeks  little or no
               current income.  This fund is managed by INVESCO Trust Company or
               its affiliates.

          o    Bond  Index  Fund.  This fund  (offered  beginning  July 1998) is
               invested in a  well-diversified  portfolio that is representative
               of the domestic investment-grade bond market.

     Loans to Participants

     The Plan  permits  loans to  participants  up to the  lesser  of 50% of the
     participant's  vested account  balance or $50,000.  A participant has up to
     five years to repay the principal and interest,  unless the loan is for the
     purchase of a primary residence, in which case the repayment period will be
     established  at the time the loan is  approved.  Loan  processing  fees are
     charged directly to the participant's  account.  Interest rates on loans to
     participants  are  based  on  market  rates,  as  determined  by  the  plan
     administrator. The interest rate as of December 31, 1998 was 9.25%.

Page 10


     Loan issuances and  repayments  are included in intraplan  transfers in the
     accompanying  statement of changes in net assets  available  for  benefits.
     Interest on loans is included in the net gain from investment in the NSI DC
     Trust and is  allocated  to each  investment  fund  based on  participants'
     investment elections.

     Benefits

     A  participant   or  his/her   beneficiary   is  entitled  to  receive  the
     distribution  of his/her  vested  account  balance upon death,  disability,
     retirement (age 65), or other termination of employment. These benefits are
     payable  in a  lump-sum  amount  or  can be  paid  in  installments  at the
     participant's election if his/her vested balance is greater than $5,000 and
     he/she is age 55 or older.

     Benefits  are payable in cash,  except that any portion of a  participant's
     account  balance which is invested in the NSI Stock Fund may be distributed
     in the form of shares of NSI common stock,  with fractional  shares paid in
     cash. If the equivalent number of shares to be distributed to a participant
     is less than 100, then the participant may elect to receive cash instead of
     shares as his/her distribution.

     Hardship  withdrawals  may be made  upon  proven  financial  hardship  of a
     participant, as defined in the plan agreement and as approved by the Plan's
     retirement committee.

     Plan Termination

     Although  the  Employer  intends  for the  Plan to be  permanent,  the Plan
     provides that the Employer has the right to discontinue contributions or to
     terminate  the Plan at any  time.  In the event of plan  termination,  each
     participant  shall be vested in the balance of his/her  account and his/her
     proportionate share of any future adjustments.


2.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

     Basis of Accounting

     The accounts of the Plan are maintained by the trustee on the cash basis of
     accounting.  The accompanying financial statements have been prepared using
     the accrual method of accounting by application of memorandum entries.  The
     preparation of financial  statements in conformity with generally  accepted
     accounting  principles  requires the Plan's management to use estimates and
     assumptions   that  affect  the  accompanying   financial   statements  and
     disclosures. Actual results could differ from these estimates.

     Investment Valuation

     Investments  of the NSI DC  Trust,  except  for the  guaranteed  investment
     contracts ("GICs"),  are stated at fair value, as determined by the trustee
     from quoted market  prices.  Securities  traded on a national  exchange are
     valued at the last  reported  sales price on the last  business  day of the
     plan year;  investments  traded in the  over-the-counter  market and listed
     securities  for which no sale was reported on the last day of the plan year
     are valued at the last reported bid price.

                                                                         Page 11


     GICs  included  in the NSI DC Trust  are fully  benefit-responsive  and are
     therefore  carried at contract  value (cost plus  accrued  interest) in the
     accompanying  financial statements in accordance with Statement of Position
     94-4, "Reporting of Investment Contracts for Welfare and Pension Plans." At
     December 31, 1998 and 1997,  contract  value  approximates  fair value.  At
     December 31, 1998, the weighted average  crediting  interest rate was 6.6%.
     For the year ended  December 31, 1998, the annual yield on the GICs held by
     the NSI DC Trust was 7%. For  certain of the GICs held by the NSI DC Trust,
     crediting  interest rates may be changed if certain  events occur,  such as
     early retirements,  plant closings,  etc., but in no case are adjusted to a
     rate less than 0%.

     GICs are  subject  to credit  risk based on the  ability  of the  insurance
     company to meet  interest or principal  payments,  or both,  as they become
     due.

     Certain GICs included in the NSI DC Trust are  synthetic;  that is, the NSI
     DC Trust owns certain  fixed  income  securities,  and the contract  issuer
     provides a "wrapper"  that  guarantees  a fixed rate of return and provides
     benefit  responsiveness.  At  December  31,  1998,  the  fair  value of the
     underlying  assets of the  synthetic  GICs  (determined  from quoted market
     prices) and the value of the related wrapper contracts were $48,749,180 and
     $(1,232,140), respectively.


3.   NSI DC TRUST

     Investment Income

     Investment  income of the NSI DC Trust for the year ended December 31, 1998
     is summarized as follows:

              Dividends on common stock                           $     363,675
              Interest income                                         3,619,354
              Net depreciation in fair value of NSI common stock     (4,420,458)
              Net income from common/collective trust                23,084,929
              Net income from mutual funds                           12,167,659
              Net income from pooled separate account                    31,785
                                                                  --------------
                            Total investment income               $  34,846,944
                                                                  ==============

     The  investment  income of the NSI DC Trust for the year ended December 31,
     1998 is allocated among participating plans as follows:

              National Service Industries Retirement and 401(k)
                 Plan                                             $     117,826
              All other NSI plans                                    34,729,118
                                                                  --------------
                            Total                                 $  34,846,944
                                                                  ==============

Page 12


     Net  Assets

     The net assets of the NSI DC Trust are as follows at December  31, 1998 and
     1997:

                                                                                     
                                                                            1998                 1997

              Mutual funds                                            $  91,469,061        $  79,312,170
              Common/collective trust                                    98,522,341           79,112,333
              Guaranteed investment contracts                            59,224,919           52,443,357
              NSI common stock                                           15,348,609           18,045,789
              Loans receivable from participants                          7,590,683            7,564,684
              Money market fund                                                   0            1,740,602
              Pooled separate account                                     2,315,680            2,385,857
                                                                      --------------       --------------
                                                                        274,471,293          240,604,792
              Cash                                                                0                9,476
                                                                      --------------       --------------
                                                                        274,471,293          240,614,268
              Accrued investment income                                       6,608              112,870
              Adjustments for pending trades                                 19,658             (199,191)
              Other                                                               0              (47,759)
                                                                      --------------       --------------
              Net assets                                              $ 274,497,559        $ 240,480,188
                                                                      ==============       ==============


      The  allocation  of the net  assets  of the NSI DC Trust to  participating
      plans is based on  participant  units and is as follows as of December 31,
      1998 and 1997:

                                                                                          

                                                               1998                              1997
                                               --------------------------------       ----------------------------
                                                    Amount             Percent            Amount         Percent
                                               ----------------- ----------------     ----------------  -----------
              National Service Industries
                Retirement and 401(k) Plan       $    1,724,494          0.63%         $    1,272,204       0.53%
              All other plans                       272,773,065         99.37             239,207,984      99.47
                                               ----------------- ----------------     ----------------  -----------
                   Total                           $274,497,559        100.00%           $240,480,188     100.00%
                                               ================= ================     ================  ===========



     Investment in NSI Common Stock

     As  of  December   31,  1998  and  1997,   approximately   5.6%  and  7.5%,
     respectively,  of the NSI DC Trust's net assets were invested in the common
     stock of NSI, a party in interest to the Plan.


4.   Tax Status

     The Plan has  received a  determination  letter from the  Internal  Revenue
     Service  dated  October  25,  1995  stating  that the Plan was  designed in
     accordance with plan design requirements as of that date. The Plan has been
     amended  since  receiving  the  determination  letter.  However,  the  plan
     administrator  believes  that the Plan is  currently  designed and is being
     operated  in  compliance  with  the  applicable  requirements  of the  IRC.
     Therefore,  the plan administrator believes that the Plan was qualified and
     that the related trust was tax-exempt as of December 31, 1998 and 1997.