Abstract:Objective To study the status of HIV infections and characteristics of HIV-positive individuals among pregnant women in Dehong prefecture,Yunnan Province during 2011—2016. Methods All pregnant women participating in pregnancy test were interviewed with a questionnaire and tested for HIV to know their HIV status.And HIV positives were divided into a group of newly diagnosed positives and another group of formerly diagnosed positives, which were compared in terms of their social demographic characteristics and behavioral characteristics. Results Among 66 106 participants received HIV testing,485 were detected positive for HIV.47.0% of the HIV-infected individuals were aged 30～39years,91.8%　were Chinese nationality,88.5%　were being married,85.6%　 have had pregnancies more than one.Among all HIV infections, 390 (80.4%) were formerly confirmed and were newly diagnosed.Nationality,,monitoring,marital status,career,number of pregnancies and number of births　were significantly different between the two groups. Conclusion　More efforts are needed for providing publicity and education to younger, Myanmar,Jingpo minority and lower cultural level women by CDC workers in Dehong prefecture. Meanwhile, pay attention to　follow-up,consist anti-virus treatment,encourage the use of condoms for diagnosed infectio　ns to reduce unwanted pregnancies and prevent sexual transmission. Pregnancy test is a n effective method to detect HIV infections,prevent martial and mother-to-child transmissions of HIV in HIV highly epidemic areas and should be continuously and widely promoted.