After being diagnosed with gastric cancer, many people are so anxious that they would like to have surgery immediately. In fact, gastric cancer is a chronic disease that does not develop particularly fast, so you should try to be calm and make treatment plans according to your condition. The treatment of gastric cancer is not only surgery, but also chemotherapy, radiotherapy, targeted drug therapy, endoscopic therapy, etc., based on the stage, pathological type, molecular typing, etc. of gastric cancer, and also related to the patient’s physical condition, underlying disease, age, gender, etc. Before treatment, comprehensive assessment of the stage is needed, such as through ultrasonic endoscopy and CT examination, to understand the depth of tumor invasion in the stomach wall, relationship with surrounding organs, lymph node metastasis, etc. Gastric cancer treatment requires multidisciplinary collaboration. Patients with different stages of gastric cancer have different treatment options; the same patient has different options at different stages of treatment. Before the first treatment decision, a comprehensive examination must be done, including clear pathological type or even molecular typing, staging, and organ function assessment, which can help doctors formulate the most suitable treatment plan. For patients who have the chance to undergo surgery, multi-layer spiral CT and ultrasonic gastroscopy are also needed to determine whether there is systemic metastasis and not to blindly rush into surgery. For patients with early gastric cancer, instead of using chemotherapy and radiotherapy, the following three methods can be used for gastric cancer treatment. (a) Surgery This is the preferred treatment method for gastric cancer. Surgery mainly includes complete therapeutic resection, palliative resection, and bypass surgery to release obstruction in advanced gastric cancer combined with pyloric obstruction. (2) Immunotherapy The indications for immunotherapy include: (1) systemic application of immunostimulant after radical resection of early gastric cancer; (2) direct injection of immunostimulant into the residual cancer in unresectable or palliative resection cases; (3) intraperitoneal injection of immunostimulant for advanced patients with ascites. (3) Endoscopic treatment Early gastric cancer patients with systemic diseases that are not suitable for surgical resection can be treated by endoscopic treatment. In addition, laser, microwave and anhydrous alcohol injection can also be applied through endoscopy to achieve the therapeutic effect of radical gastric cancer.