Objective   To study the features and to present condition of sexual behaviorin the HIV/AIDS population.

  Methods   Questionnaire among HIV/AIDS, their sexual partners and local health control people was used in Zizhong, Zhaojue and Xichuang in Sichuan province.

  Results   In Zizhong 15.0% of PLWHA had temporary sexual partners; the proportion in Zhaojue and Xichang was 57.9% and 18.9% respectively.36.8% of PLWHA in Zizhong "often".use condom with constant sexual partners, and 66.7% never used condom with temporary partners.In Xichang 65.4% never used condom with constant partners and 72.7% never used condom with temporary ones.In Zhaojue the two ratios were 97.1% and 100.0%.

  Conclusion   The sexual behavior of PLWHA was more complicated than that of general population, but the present sexual conditio n in PLWHA had some characteristics in common which made the key points of behavior interference and health education.To control the HIV sexual transmission, condom-using in sexual behavior took on more importance than other measures.In urban the rate of using condom in sexual behavior increased obviously during past one or two years, which was helpful to control the HIV transmission.Meanwhile, the primary targe tarea of decreasing HIV transmission should be transferred from urban areas to rural ones.