Chemotherapy for stomach cancer is preferred to drugs such as fluorouracil and platinum. Patients with gastric cancer chemotherapy usually prefer platinum drugs, including oxaliplatin and cisplatin as the basis of chemotherapy. They mainly inhibit the replication of DNA to control the tumor cells, and can achieve relatively good therapeutic effect for stomach cancer. In addition, 5-fluorouracil is more frequently used in gastric cancer, including single-drug, double-drug, and even triple-drug combination chemotherapy regimens are mostly included. In the process of using chemotherapeutic drugs, liver and kidney function injury or digestive tract symptoms may occur, etc., which need to be treated symptomatically according to the situation, and auxiliary drugs are used routinely. Specifically under the guidance of the doctor to use drugs, to avoid blindly use their own drugs.