Northern Shaanxi is a region with a high incidence of gastric cancer, so it is necessary to promote the scientific knowledge of gastric cancer prevention and treatment in the region to raise people’s awareness of gastric cancer, improve the cure rate, reduce the financial burden of patients and combat unscrupulous hospitals that aim at profit-making. Gastric cancer can be diagnosed by gastroscopy and pathological examination, and the most important issue is how to treat it. There are many treatment methods for gastric cancer, besides the common surgery, radiotherapy, cellular immunotherapy and Chinese medicine, there are also many emerging treatment methods. How to choose the treatment methods for gastric cancer? Modern concept of gastric cancer is a comprehensive treatment mode mainly based on surgery, and no one method can completely replace another method. Therefore, the treatment of gastric cancer should firstly choose a professional gastrointestinal oncology surgeon, and secondly choose a hospital of certain scale. Surgery is the preferred treatment method for early gastric cancer, including distal major gastrectomy, proximal major gastrectomy, total gastrectomy and total gastric combined with spleen and pancreatic body tail resection, combined resection of gastric cancer combined with involved organs and palliative surgery. There are certain indications for gastric cancer surgery, and it is easy to recur and metastasize after surgery if it cannot be cured, so systematic treatment of gastric cancer after surgery is very important. Radiotherapy for gastric cancer Radiotherapy is one of the common treatments for gastric cancer, mainly used as a combination treatment before and after surgery. There are more complications of gastric cancer radiotherapy methods, and for patients with advanced tumors, the effect of radiotherapy is not complete. At the same time, patients with poor physical condition and old age, continuing radiotherapy can only lead to a weakened life that is more critical and accelerate the death of patients. Gastric adenocarcinoma has low radiosensitivity and poor efficacy. Chemotherapy is different from surgery and radiotherapy in that it is holistic in treating the human body and works throughout the body through oral and intravenous administration. However, chemotherapy has many side effects, including bone marrow suppression, damage to the cardiovascular system, skin, liver and kidney functions, etc., and patients suffer a lot. Therefore, when choosing radiotherapy for gastric cancer, besides the need of treatment, patients’ tolerance should also be considered. Biological therapy and traditional Chinese medicine are widely used in the treatment of gastric cancer. Combining them with surgery and radiotherapy can obviously play a therapeutic role of increasing efficiency and reducing toxicity; they can also be used alone for patients with gastric cancer who do not have indications for surgery or radiotherapy in the middle and late stages, which can effectively improve patients’ symptoms and prolong survival. It is applicable to the whole treatment process of gastric cancer, which truly realizes the human-oriented treatment of tumor rather than just treating the disease. Therefore, for patients who are not suitable for surgical treatment and cannot tolerate radiotherapy or advanced patients, simple use can still effectively control the cancer, prolong the survival period and improve the quality of survival. The key to gastric cancer treatment is to choose the correct treatment method and how to combine multiple methods scientifically and individually.