Exhibit 31.1

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

I, Robert S. Ehrlich, certify that:

      1.  I  have  reviewed  this  annual  report  on  Form  10-K/A  of  Arotech
Corporation;

      2. Based on my  knowledge,  this annual 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 annual
report;

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

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

      (a)   designed such  disclosure  controls and  procedures,  or caused such
            disclosure   controls  and  procedures  to  be  designed  under  our
            supervision,  to ensure that  material  information  relating to the
            registrant,  including its consolidated subsidiaries,  is made known
            to us by others  within  those  entities,  particularly  during  the
            period in which this annual 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 annual report our  conclusions
            about the effectiveness of the disclosure controls and procedures as
            of the end of the period covered by this annual report based on such
            evaluation (the "Evaluation Date"); and

      (d)   disclosed  in this  annual  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  this  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  officer 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):


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      (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 2, 2005
                                         /s/ Robert S. Ehrlich
                                  ----------------------------------------------
                                  Robert S. Ehrlich, Chairman, President and CEO
                                  (Principal Executive Officer)


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