Many gastric cancer patients are afraid to eat, don’t know when to eat and how to eat after surgery. Good dietary teaching and management are quite important for post-operative recovery. The postoperative diet of gastric cancer is divided into four stages: liquid, semi-liquid, soft food and general diet. Fluids include water, juice, rice soup, fish soup and enteral nutrients. Generally speaking, a small amount of fluid can be eaten after the gastric tube is removed, and if there is a nasal feeding tube, nutrition can be dripped through the nasal feeding tube. After 2-3 days of liquid diet, you can transition to semi-liquid diet, which mainly includes egg stew, thin rice, steamed buns and noodles. The semi-liquid diet varies from hospital to hospital, with some hospitals transitioning to a soft diet in about 3 days, while in some hospitals, the semi-liquid diet continues even 1 month after surgery. Nutritional supplements, in addition to protein and calories, should include adequate vitamins and iron; enteral nutrient preparations are rich in nutrients and energy and can be the first choice for the initial postoperative diet, but some patients have not fully recovered their digestive function and need to control the amount of food eaten each time or take digestive enzymes to aid digestion. After discharge from the hospital, the principle of diet is still to take a small number of meals, less greasy, fried and spicy, each meal can only be 1/3 to 1/2 of the normal, and snacks can be added between meals to obtain the necessary nutrition. In addition to eating less and more meals, we should also pay attention to the cooking method, food matching, and create a good dining environment. 1, in cooking, in addition to attention to color and flavor, the method should be used to steam, boil, braise, choke, mix, dishes to achieve the purpose of cooked, rotten, tender, soft. 2, the combination of food should be in line with the nutritional quality, both with less food capacity to achieve higher nutritional requirements. For example, oil is one of the indispensable nutritional foods for the body, but oil can be greasy diaphragm and stagnant stomach, so it can only be given in moderation, in order to achieve the patient’s palatability. The daily recipes should include more dark green vegetables and dark yellow fruits, because the richer vitamin A and C can play a certain role in preventing the spread of gastric cancer. 3. Try to diversify food, eat more high protein, multivitamin, low animal fat, easy to digest food and fresh fruits and vegetables, do not eat stale or stimulating food, eat less fumigation, baking, pickled, fried and salty food, and mix coarse and fine grains with staple food to ensure nutritional balance. Sour, sweet, bitter, spicy, salty five, each flavor has its special role. Sour can be astringent, astringent appetite; sweet can benefit the spleen and stomach; bitter can drain, dry damp, a small amount can be appetizing; spicy can also be appetizing; salty can pass down, soft firmness. Basically, all foods are the above five flavors, or several flavors mixed together. Patients recovering from tumor should choose foods with certain anti-cancer ingredients and softening and dispersing effects. Besides rice, wheat, millet and soybeans, chicken, goat and beef are qi-supplementing foods, which can be consumed by tumor patients with physical deficiency. Duck, tortoise, turtle, carp and whore are foods that are good for the spleen, sea cucumber, jellyfish, abalone, kelp, water chestnut and rhizome can soften and disperse knots and eliminate “lumps”, wood ear, monkey mushroom, shiitake mushroom, golden needle mushroom and other edible mushrooms have certain anti-cancer effects. In particular, shiitake mushrooms have more nutritional value than all other mushrooms, containing 7 kinds of essential amino acids, calcium, copper, iron, manganese and other emblematic elements, as well as various sugars and enzymes, which can improve and enhance human immunity. Vegetables, fruits and beans are rich in many kinds of vitamins and trace elements, which have certain anti-cancer and anti-cancer effects. For example, soybeans, cabbage and Chinese cabbage are rich in trace elements of molybdenum, tomatoes, carrots, cabbage and dates are rich in vitamins A, C and B. Among them, cabbage has the best nutrition, it contains many vitamins, more than tomatoes several times. Garlic moss, leek, cauliflower and cabbage are rich in vitamins, but also contain indigo substrate that can increase the activity of aryl hydrocarbon hydroxylase, which can resist the carcinogenic effect of chemical carcinogens. In a word, after gastric cancer surgery, eat less and more meals, limit to full, fresh nutrition and appropriate tonic.