Objective To assess the life quality of patients with chronic hepatitis B after the treatment of lamivudine,to find an ideal way of medical treatment for the chronic hepatitis B.Methods The quality of life of 150 patients with chronic hepatitis B and 50 healthy controls were assessed by the quality of life questionnaire.The laboratory data and marks of questionnaires were compared before and after the using of lamivudine in order to assess its comprehensive curative effect on chronic hepatitis B.Results The marks of SF-36 of chronic hepatitis were significantly different compared with those of control group (P