This paper systematically analyzes the relationship between the comprehensive performance and source of graduate students from the business school of university A in three aspects: gender, the tier of undergraduate universities and the type of enrollment. The results show that the comprehensive performance of female students is better than that of male students, but the top-notch proportion of male students is higher. The proportion of students from “double first-class” universities winning the first and second prize scholarships is higher than those from other universities, but this gap is gradually narrowing. It is worth noticing that the proportion of recommended exemption graduates is quite low and that their performance is good but not outstanding as a whole. It is found that the relationship between the source and comprehensive performance of graduate students is complex. While it is necessary to improve the source quality of the students, it is more important to cultivate the students during their postgraduate study.