Abstract: ObjectiveTo explore the prevalence and risk behavior of human immunodeficiency virus(HIV)infection among detainees in detention places in Shandong province,and to provide basis for the prevention and control of HIV/AIDS. MethodsA face-to-face questionnaire survey was conducted among detainees in detention places in Shandong province,2006-2010 and vein blood samples were collected for HIV antibody test. ResultsAmong the detainees,HIV-positive rate was 0.11% and over 85% of the HIV infections and AIDS were the migrant persons from other provinces.Significant difference in HIV-positive rate was found between the high risk group and non-high risk group(χ²=1147.53,P<0.01).The highest positive rate(8.65%)was observed in the detainees with history of drug addiction.Secondary transmission was confirmed among the detainees and their spouse with the annual HIV-positive rate of 22.22%,28.57%,15.78%,25.00%,and 21.42% from 2006-2010,respectively. ConclusionThere is HIV prevalence among detainees in detention places in Shandong province.It is necessary to enhance comprehensive surveillance among the detainees from some provinces with high HIV prevalence rate and to follow up the HIV infectors.