Abstract: The report show the inmunization result of 52 children inmunized with twice HIV attennuated live vaccine which infection titer is as 550kg CCID50/ml respectively at 0.3 mont of The presentive data indicated that HAV antibody response all chillren inmunized is postive The average titer of antibody is 1:8~1:32GMT IS 13.82 The GPT value of all children inm un ized is unchanged(2~24). The group of HAV antibody being positive has the 2 times increasrs Of HAV antibody level after in m unized twice vaccine.