Abstract: This article summarized circumstances and influential factors of post-transfusion HIV/AIDS in recent years.Laws and regulations were emphasized in respective duties of every blood transfusion related departments.The strictly controlled imported blood products,carefully blood screening on donor,standardized blood products,tightened control on indication of use of blood,and finally,carefully told rare-happened HIV/AIDS to recipients were the key measures to avoid forensic cases of post-transfusion HIV/AIDS.Main evidences in Medical legal identification of post-transfusion HIV/AIDS were also proposed.

Key words: post-transfusion, HIV/AIDS, medical legal identification