1982 graduated from college, 1985 to 1988 studied for a master's degree. He studied under Professor Tian Gengshan and Professor Liu Fengju, and his research topic was the study of HBV DNA in the sperm of HBV infected people. 199 1 ~ 1994 to study the HIV infection in some high-risk groups. 1995, 65438+ 10 ~ 1997, 65438+in February, the school worked and studied in Insertu22 Retrovirus and Disease Association, one of the discoverers of HIV, mainly studying the molecular biological characteristics of HIV-deficient virus genes.