Abstract: Through the analysis of sexual health KAP(attitude, knowledge and behavior)of more than 800 students, it is found that the contemporary university students' sexual attitudes are diversified and haphazard, there is a notable conflict between their physiological maturity and their lagged sexual psychological development and their lack of sexual knowledge; and the sexual behavior is characterized by lowering trend of age, a year-by-year increase and a lack of moral restraint. Therefore it is necessary to remedy a scientific and systematic education of sexual health that has been long delayed for university students.