Fruits are rich in various vitamins, so patients with stomach cancer can have a balanced diet of various fruits. Patients with constipation can eat more dragon fruit and bananas with laxative effect; patients with low potassium can eat more fruits rich in potassium, such as oranges and bananas; patients with diarrhea can eat more fruits with astringent effect, such as apples and peaches. It should also be noted that patients with diabetes mellitus should monitor their blood sugar level after eating fruits, so as not to cause blood sugar increase. Because the damage to gastric mucosa caused by surgery, radiotherapy and chemotherapy can cause malnutrition, so gastric cancer patients need to strengthen nutritional treatment before, during and after treatment. The nutrients required by gastric cancer patients include arginine, glutamine, unsaturated fatty acids, nucleic acid and micronutrients with antioxidant effect, such as vitamin E, vitamin C, β-carotene, zinc and selenium. In conclusion, patients with stomach cancer can have a balanced diet of various fruits, and when eating, they should pay attention not to be too cold, chew slowly and eat less and more often.