BSRI check list was used to survey and analyze the distribution of sexual personalities of 399 university students of different subjects.The result shows that there are four types of sexual personalities as double-personality,masculine-personality,feminine-personality and undifferentiated-personality in university students.The double-personality students got the highest score,as well the undifferentiated-personality students got the lowest score.The reports of different sexual personalities students have significant statistical significance,and the learning interest,learning habits and learning methods of double-personality students are better than others.