Gastric cancer cells are moderately radiotherapy-sensitive tumor cells, so radiotherapy is definitely effective. However, the treatment of gastric cancer is a comprehensive treatment mainly based on surgery. For patients initially diagnosed with gastric cancer, it is recommended to have multidisciplinary consultation to formulate a specific treatment plan according to the guideline and the patient’s own situation, whether to do radiotherapy first and then surgery, or surgery first and then radiotherapy, or chemotherapy alone or surgery alone after surgery. For more advanced patients with localized lymph node metastasis, surgical resection is difficult, it is recommended to perform preoperative neoadjuvant therapy neoadjuvant therapy, including radiotherapy and chemotherapy, for postoperative patients with T3 or more or lymph node metastasis, it is recommended to do postoperative adjuvant radiotherapy, for the inoperable or metastatic patients, so that the localized foci of the disease do palliative radiation therapy, in the radiotherapy should be in conjunction with other treatments, radiotherapy is Radiotherapy is a kind of local treatment, and according to the specific conditions of patients, chemotherapy, targeted therapy, immunotherapy and other treatment modalities can be added. Chinese people are more accustomed to the use of traditional Chinese medicine, can also be added according to the patient’s physical condition, the use of traditional Chinese medicine to regulate the body to increase immunity to ensure that the treatment is carried out smoothly.