The survival time of gastric cancer after middle and late stage surgery is mainly based on the pathological type of gastric cancer, metastasis and general condition of patients, and it is impossible to make a generalized judgment. Gastric cancer is a malignant tumor of the stomach, and some patients can be cured clinically through surgical treatment. For mid-stage gastric cancer, radical resection of gastric cancer can be performed, and the five-year survival rate after surgery can reach 30%-70% according to clinical statistics. For advanced gastric cancer, that is, gastric cancer with distant organ metastasis, radical gastric cancer surgery is usually not possible, and if symptoms such as bleeding and obstruction occur, palliative gastric cancer resection with postoperative chemotherapy can be considered, and the five-year survival rate is usually less than 5%. In addition, if there is no pyloric obstruction, patients with advanced gastric cancer should try to eat thin, soft, easily digestible liquid food or semi-liquid food, such as thin porridge, rotten noodles, rice paste, etc., to supplement nutrition as much as possible.