Abstract:Objective To investigate the effect of Kanglaite Injection on immune cell activity in patients with gastric cancer chemotherapy. Methods A total of 84 patients with advanced gastric cancer admitted to the Affiliated Hospital of Jinggangshan University from October 2019 to August 2021 were selected as the research objects. They were divided into two groups by random number table method, with 42 cases in each group. The control group was treated with conventional Docetaxel combined with Cisplatin chemotherapy, and the treatment group was treated with Kanglaite Injection on the basis of the control group. The curative effect was evaluated during 2 cycles of treatment in both groups.Compared the clinical efficacy of the two groups before treatment and after 2 cycles of treatment, compare the immune function levels of the two groups(T lymphocyte subsets[CD3+,CD4+,CD8+,CD4+/CD8+])before treatment and during 2 cycles of treatment, record the occurrence of side effects in the two groups during treatment. Results The disease control rate of patients in the treatment group was higher than that of the control group during the 2 cycles of treatment, and the overall treatment effect was better than that of the control group, the differences were statistically significant (P<0.05).There were no significant differences in the CD3+,CD4+,CD8+,CD4+/CD8+between two groups before treatment(P>0.05). The CD8+ of two groups during the 2 cycles of treatment were higher than those before treatment, and the CD3+,CD4+, CD4+/CD8+ were lower than those before treatment, but the CD8+ of the treatment group was lower than that of the control group, and the CD3+, CD4+, CD4+/CD8+were higher than those of the control group, the differences were statistically significant (P<0.05). During treatment period, the incidence of nausea, vomiting and bone marrow suppression of the treatment group was lower than that of the control group, and the difference was statistically significant (P<0.05).Conclusion Kanglaite Injection assisted in gastric cancer chemotherapy patients can enhance the immune function of patients, improve clinical efficacy, and reduce the occurrence of nausea, vomiting and bone marrow suppression.