Exhibit 99.906CERT

                            SECTION 906 CERTIFICATION

      Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Wells Fargo
Master Trust (the "Trust"), hereby certifies, to the best of her knowledge, that
the Trust's report on Form N-CSRS for the period ended August 31, 2010 (the
"Report") fully complies with the requirements of Section 13(a) or Section
15(d), as applicable, of the Securities Exchange Act of 1934 and that the
information contained in the Report fairly presents, in all material respects,
the financial condition and results of operations of the Trust.

      Date: October 29, 2010

                              By: /s/ Karla M. Rabusch

                                      Karla M. Rabusch
                                      President
                                      Wells Fargo Master Trust




                                                              Exhibit 99.906CERT

                            SECTION 906 CERTIFICATION

      Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Wells Fargo
Master Trust (the "Trust"), hereby certifies, to the best of his knowledge, that
the Trust's report on Form N-CSRS for the period ended August 31, 2010 (the
"Report") fully complies with the requirements of Section 13(a) or Section
15(d), as applicable, of the Securities Exchange Act of 1934 and that the
information contained in the Report fairly presents, in all material respects,
the financial condition and results of operations of the Trust.

      Date: October 29, 2010

                              By: /s/ Kasey L. Phillips

                                      Kasey L. Phillips
                                      Treasurer
                                      Wells Fargo Master Trust