Objectives : The purpose of this study was to examine the efficacy of Gamichunggan-tang(Jiaweiqinggan-tang) on 57 patients who have suffered from chronic liver disease. Methods : Gamichunggan-tang(Jiaweiqinggan-tang) was administered to patients for over 2 months continuously. We checked improvement of clinical symptoms, changes of Hepatitis B markers and lymphocyte count. Results : Gamichunggan-tang(Jiaweiqinggan-tang) has significant effect on the improvement of clinical symptoms. And the ratio of seroconversion from HBeAg positive to HBeAg negative was 42.9%. Lymphocyte increased in 83.3% of patients converted to HBeAg negative. Conclusions : It is suggested that Gamichunggan-tang(Jiaweiqinggan-tang) has significant effects on the recovery of weakened liver function and immune modulation. This treatment could be recommened as a prescription for Chronic liver disease.