In the post-pandemic era, this paper divides university students based on their ethnic and cultural backgrounds, using a questionnaire survey method. Taking 640 students from the college of Business at Beijing Union University as the subjects, it explores the current status of the psychological health of minority university students in ordinary universities and the relationship between the psychological health of Han and minority students. The results show that the psychological health of both Han and minority students is not optimistic, with about 20%-30% of students experiencing varying degrees of psychological disorders. There is no significant difference in the psychological health of minority and Han students. Among Han students, there are differences in the psychological health levels of students in different grades, and psychological health issues are more serious among Han female students than male students.