Abstract: Objective:To investigate the antitumor effect of lianbizhi injection.Methods:Whereas lianbizhi injection was used to treat 100 patients with malignant tumor.The series of immune functions were examed and the life qualities were observed.Results:Compared with the control group,the immune function of patients treated by lianbizhi was improved and levels of the patients'NkcA and TLcTR were significantly increased,the level of SIL-2R was significantly decreased,the clinical symptoms and life quality of the patients were improved and the tumor burdens were decreased.Conclusion:The results indicate that lianbizhi has therapetic effect on tumor and may be used as one of the method of comprehensive therapies in clinic.