Patients with gastric cancer who are treated conservatively without surgery will eventually develop more serious complications that can jeopardize their lives. Because stomach cancer is a kind of malignant tumor of digestive tract, sometimes when the pathological type is poorly differentiated, this malignant disease progresses more quickly. In principle, if gastric cancer is detected in early stage and there is a chance of surgery, surgery should be adopted as the main treatment principle and other auxiliary treatment options should be supplemented. For patients who cannot have surgery for stomach cancer, most of them are middle and late-stage patients or physically unable to bear large-scale surgery, so they should adopt conservative treatment. However, palliative conservative treatment can also be carried out for middle and advanced gastric cancer, such as gastrojejunostomy and gastrostomy, which can help to improve the survival and cure rate of gastric cancer patients, reduce the pain and prolong the survival period of patients appropriately.