EXHIBIT 31

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
                           PURSUANT TO RULE 13a-14(a)

I, Myron Levy, Chairman of the Board and Chief Executive Officer, certify that:
     1. I have reviewed this Quarterly Report on Form 10-Q of Herley Industries,
     Inc. ("the registrant");
     2. Based on my knowledge, this report does not contain any untrue statement
     of a material fact or omit to state a material  fact  necessary to make the
     statements made, in light of the circumstances  under which such statements
     were made,  not  misleading  with  respect  to the  period  covered by this
     report;
     3. Based on my knowledge,  the financial  statements,  and other  financial
     information  included  in  this  report,  fairly  present  in all  material
     respects the financial  condition,  results of operations and cash flows of
     the registrant as of, and for, the periods presented in this report;
     4. The  registrant's  other  certifying  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  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  fiscal
     quarter  ended  October  29,  2006  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):
     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:    December 8, 2006

                                  By:   /S/ Myron Levy
                                      ----------------------------
                                  Name:     Myron Levy
                                  Title:    Chairman of the Board and
                                            Chief Executive Officer

                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
                           PURSUANT TO RULE 13a-14(a)

I, Kevin J. Purcell, Chief Financial Officer, certify that:
     1. I have reviewed this Quarterly Report on Form 10-Q of Herley Industries,
     Inc. ("the registrant");
     2. Based on my knowledge, this report does not contain any untrue statement
     of a material fact or omit to state a material  fact  necessary to make the
     statements made, in light of the circumstances  under which such statements
     were made,  not  misleading  with  respect  to the  period  covered by this
     report;
     3. Based on my knowledge,  the financial  statements,  and other  financial
     information  included  in  this  report,  fairly  present  in all  material
     respects the financial  condition,  results of operations and cash flows of
     the registrant as of, and for, the periods presented in this report;
     4. The  registrant's  other  certifying  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  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  fiscal
     quarter  ended  October  29,  2006  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):
     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:    December 8, 2006

                               By:      /S/ Kevin J. Purcell
                                        ------------------------------
                               Name:    Kevin J. Purcell
                                        Title: Chief Financial Officer