An analysis of 8,541 majors of graduate student recruit students of 42 double first class universities found that departures from national requirements in the three dimensions of training type, study method, and discipline field affect the advancement of equal enrollment opportunities for Master's students nationwide in different ways, and the causes are all based on institutional partiality or discrimination against candidate origin. Therefore, we recommend that double first class universities comprehensively investigate majors with unequal recruitment and eliminate those that are not compliant or have unreasonable conditions while designing "impartial" graduate student recruitment institutions that uphold personnel and institutional views of equal opportunity. [Translation by Jeff Keller.]