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                                                                    EXHIBIT 23.1

                         CONSENT OF INDEPENDENT AUDITORS

     We consent to the incorporation by reference in the Registration Statement
(Form S-8) pertaining to the Administaff, Inc. 2001 Incentive Plan of our report
dated February 9, 2001, with respect to the consolidated financial statements of
Administaff, Inc. included in its Annual Report (Form 10-K) for the year ended
December 31, 2000, filed with the Securities and Exchange Commission.

                                                           /s/ ERNST & YOUNG LLP

Houston, Texas
July 30, 2001