Abstract: Abstract: Objective To understand the cognitive and behavioral characteristics of AIDS between male- male in college students, and to provide evidence for the prevention and control strategies. Methods Using cluster random sampling method, the questionnaire survey including basic situation, the perception of HIV/AIDS of male male actors, sexual behavior and condom use and HIV/AIDS counseling detection, was used to investigate in male students of 8 universities at Beijing fangshan distric. Results A total of 2 444 male college students were surveyed, 138 cases with male-male behavior were detected, and the detection rate was 5.65%. The detection rate (18.31%) of the junior college students was statistically higher than that of first- year college students (4.28% ) and sophomores (6.52% , P＜0.017). The awareness rates of four relevant knowledge about HIV/AIDS for 138 students were 25.36%, 15.22%, 9.42% and 13.77% respectively. The 44.93% male-male in college students had first sexual intercourse were younger than 18 years old. The proportion of students with first time male- male behavior and age ＜18 years was higher in the first- year college students (58.9% ) than that of sophomores and junior college students (30.77% , 26.92% ). The incidence rate of bisexuality was 43.48% in male-male behavior, and 73.91% was polysexual partners. The correct usage rate of condom was 31.16%. AIDS counseling detection rate was 27.54%. Conclusion The detection rate is higher in students with male-male behavior, and the awareness rate of AIDS-related knowledge is lower. A variety of high risk sexual behaviors are prevalent, so it is necessary to strengthen HIV/ AIDS education and HIV/AIDS related knowledge for college students.

Key words: acquired immunodeficiency syndrome, sexual behavior, knowledge, behavior, questionnaires, men who have sex with men, survey