When celiac gastritis becomes cancerous, that is, gastric cancer, surgical treatment, chemotherapy, radiotherapy and immunotherapy can be considered. 1. Surgical treatment: after clinical examination, if no obvious metastasis of cancer cells is observed, there is no serious organic lesion in important organs, and the nutritional status and immune function of the whole body can tolerate surgical treatment, surgical treatment can be considered. 2. Chemotherapy: this is a more important means of comprehensive treatment for gastric cancer, and can be used as preoperative, intraoperative and postoperative adjuvant treatment for surgical treatment. 3. Radiation therapy: this kind of treatment can be used as an auxiliary treatment for surgical treatment of gastric cancer. 4. Immunotherapy: it is applicable to all periods of gastric cancer and can effectively enhance or regulate the host’s anti-tumor immune response, which can help prolong the survival period. Gastric cancer is very dangerous and patients are advised to take active treatment.