Less and more meals are appropriate for people with major gastric resection. 6-7 times a day, regular and quantitative meals can keep the stomach from being empty and can gradually adapt to the digestive function of the residual stomach. Less and more meals should be the important diet system for patients after gastrectomy. Separate dry and thin food, in order to make the food stay in the stomach longer, eat only drier food and do not drink water during meals, and drink water after 30 minutes of meals, so as to avoid food being rushed into the small intestine quickly and can pass through the small intestine slowly, and promote further absorption of food. Limit carbohydrate intake to prevent dumping syndrome. Gradually increase the amount of food and food types. Patients should gradually change from post-operative liquid and semi-liquid food to soft food or ordinary meals, and increase the pattern according to the patient’s diet to improve the patient’s appetite and help the patient’s recovery. It is advisable to eat more foods that can enhance immunity and anti-stomach cancer, such as yam, lentils, barley, shiitake mushrooms, mushrooms, sunflower seeds, kiwi, figs, apples, sardines, honey, pigeon eggs, milk, pig liver, sandworms, monkey head mushrooms, abalone, needlefish, sea cucumber, oysters, squid, shark, tiger fish, yellowtail swim bladder, seahorse and turtle. 2.It is advisable to eat more highly nutritious food to prevent and control cachexia, such as oyster chicken, pigeon, quail, beef, pork, rabbit, egg, duck, tempeh, tofu, silver carp, grass carp, swordfish, mackerel, yellowtail, squid, crucian carp, eel, pangolin, pomfret, loach, shrimp, tamarin, sturgeon. 3.It is advisable to eat Ulva, pomelo, orange, loquat, corn, walnut, rose, poppy, fig, ginger, lotus root, pear, winter vegetable, mango, umeboshi, lotus seed. 4, food to prevent side effects of chemotherapy: kiwi, asparagus, cinnamon, walnuts, carp, shrimp, crab, carp, pond lice, shiitake mushroom, black fungus, quail, barley, mud snail, mung bean, golden needle, apple, loofah, walnut, turtle, snapper, umeboshi, apricot cake, figs. In addition to dietary regulation, Chinese herbal medicine can be used appropriately to enhance the immunity of the body by taking ginsenoside rh2 to alleviate the toxic side effects of surgery and promote the recovery of the body after surgery.