Abstract:Abstract: Objective To investigate the effect of Yiqifumai injection (freeze-drying) on the immunity and quality of life in patients with advanced lung cancer. Methods In this study, 63 patients with advanced lung cancer who were diagnosed by pathology and cytology and accepted chemotherapy in our hospital from September 2013 to August 2014 were taken as control group, and 67 cases of the same kind of patients from January 2015 to December 2015 were selected as observation group. The patients in the two groups were given the same chemotherapy regimen and auxiliary health guidance, nutritional support, psychological and rehabilitation exercise guidance, as well as analgesics and antiemetics. The observation group had additional treatment of Yiqifumai injection. After 6 courses hematologic parameters of immune function, quality of life, Karnofsky score, curative effect and adverse reactions were compared between the two groups. Results In the observation group the amount of C-reactive protein and white blood cells was reduced (P < 0.05), the activity of NKT cells was increased, the proportions of CD3+ and CD4+ T cell subsets and CD4/CD8+ ratio were increased (P < 0.05). The immune function of the body was enhanced. The scores of quality of life of the patients in the two groups had no significant difference before treatment, but increased in both groups after treatment. The improvement in the cognitive function and economic difficulties was consistent in the two group, but that in the remaining dimensions was better in the observation group (P < 0.05). After treatment, the Karnofsky score of the observation group was significantly different from that of the control group (P < 0.05). The total effective rate was 95.52% in the observation group and 60.32% in the control group, and there was significant difference between the two groups (P < 0.05). In the observation group, white blood cell and platelet count and hemoglobin level decreased, abnormal liver and renal function was observed, and the differences between the two groups had statistical significance (P < 0.05). Conclusions Application of Yiqifumai injection can not only improve the patients' immune function, but also reduce the occurrence of adverse reactions and improve the quality of life of the patients.