Common therapeutic measures for gastric cancer patients include the following aspects: 1. Surgical treatment: those who have no obvious metastatic signs in clinical examination, no serious organic lesions in all important organs, and those who are estimated to have general nutritional status and immune function that can tolerate surgery can be considered for surgical treatment. Even if there are distant metastasis or accompanied by serious complications such as pyloric obstruction or perforation, and the general condition can tolerate surgery, palliative surgical treatment can be considered to alleviate the symptoms; 2. Chemotherapy: it is one of the important means of comprehensive treatment of gastric cancer, and serves as the auxiliary treatment for preoperative, intraoperative, and postoperative of the surgery; 3. Radiation therapy: it serves as one of the auxiliary treatments only for the surgical treatment of gastric cancer; 4, Immunotherapy: it is to use biological regulators to induce or trigger the immune effector cells of the body, enhance or regulate the anti-tumor immune response of the host, which has the effect of prolonging the survival period and is suitable for all stages of gastric cancer.