Postoperative adjuvant chemotherapy for gastric cancer can prolong survival and reduce recurrence compared with surgery alone. It is generally advocated that postoperative adjuvant chemotherapy should be carried out as early as possible as long as the function of each organ is basically restored to normal after surgery, and it is better to start it around 4 weeks after surgery, not more than 6 weeks, and it is better to carry out 8 courses. Li Guodong, Department of Colorectal and Anal Surgery, The Second Hospital of Jilin University Program 1: 5-Fu 1250mg d1 d2 static (add to saline day 1 and day 2 static) Calcium folinic acid 100mg d1 d2 static (add to saline day 1 and day 2 static) Oxaliplatin 150mg d1 static (add to 500 ml of dextrose solution static on day 1) Use chemotherapy drugs for 2 days, and the rest of the application of Protective drug + rest, one course of treatment every 3 weeks Option 2: Xeloda 3 capsules twice daily for 14 days Rest for 7 days to start the next course of treatment (7 cartridges are needed) Oxaliplatin 150mg d1 IV (add to 500ml glucose solution IV on day 1) 14 days of the drug, rest for 7 days, one course of treatment every 3 weeks Option 3: Tegretol capsules 3 capsules twice daily for 21 days Rest for 7-10 days to start the next course of treatment (7 cartridges are needed) The next course of treatment (3 boxes are needed) Oxaliplatin 150mg d1 IV (added to 500 ml of glucose solution IV on day 1) 21 days of dosing, 7-10 days of rest, every 4 weeks more than one course of treatment The degree of priority of application should be: option 3 is better than option 2, option 2 is better than option 1, and it is best to apply option 3.