Abstract: Objective To examine the knowledge,attitude,and behavior(KAP)about AIDS among college students,and to provide evidence for health education on AIDS. Methods With a self-designed questionnaire,an investigation about KAP on AIDS was carried out among 814 students in colleges. Results Of all the students,82.7% (673/814)thought that AIDS was not very far away from them and 59.6% (485/814)could exactly remember the date of World AIDS Day but 27.5% (224/814)did not know the day.There were 74.6% (607/814)of the students willing to have class with AIDS students in the same classroom and 49.8% (405/814)willing to have dinner with AIDS patients. There were 92.6% (754/814)of the students considered that AIDS patients should get sympathy and help from the public.The proportion of sources for AIDS know ledge from teachers,friends and classmates,and special lectures was 46.8% (381/814),27.9% (227/814),and 20.9% (170/814),respectively among the students. Conclusion The college students have the sense of AIDS risk but are lack of self-protection aw areness and accessible AIDS know ledge in the colleges.