The normal metabolism of the organism and good nutritional status are important for maintaining life activities. Good nutrition is even more important for people with gastrointestinal diseases. For patients who cannot eat after surgery, doctors will give parenteral nutrition, that is, infusion, intravenous nutrient solution, according to the patient’s physiological and pathological metabolism, then for patients who can eat, different diets are given according to the condition. Clinically, diet can be divided into four stages: liquid diet, semi-liquid diet, soft food and general diet. Liquid diet mainly consists of rice soup and various vegetable soups, in addition to various enteral nutrients available in hospitals. The semi-liquid diet is the main diet of eight-point porridge, in which there are also side dishes. Soft food is the main food made into soft rice. After gastrectomy, once the gastrointestinal motility is restored, drink water first, and after 2-3 days of liquid diet to semi-liquid diet. Furthermore, it is necessary to replenish electrolytes, vitamins and trace elements, among which electrolytes include potassium, sodium, chloride, calcium, magnesium and phosphorus, and trace elements include zinc, manganese, copper, iron, iodine, etc. We can take in many kinds of fruits and vegetables, but due to the incomplete function of patients with gastrointestinal diseases, it is not recommended to eat vegetables containing more fiber at this time, you can choose fruit juice, preferably freshly squeezed, drink juice, eat less or no pulp The fruit, such as oranges, apples, bananas, grapes, carrots, kiwis, etc., are rich in vitamins, electrolytes and trace elements. In addition, Chinese medicine is more attentive to the diet of postoperative patients. According to Chinese medicine, diet is an important material source of human life, and is the source of nourishment for the organs, limbs and bones. A properly regulated diet can nourish the blood, strengthen the body and spleen, and enhance the body’s ability to resist diseases. Due to the seven emotions (happiness, anger, sadness, thought, grief, fear and fright) and the tendency of sadness, thought and grief, the abnormal changes of these emotions make the body’s qi and blood rebellious, and diseases occur due to the imbalance of qi and yin and yang. We follow the principle of “use food to pacify A, release sex to dispel disease”, postoperative patients are prone to gastrointestinal tract dysfunction, so it is very important to regulate gastrointestinal function. Patients eat. For example, lentils and red dates japonica rice porridge, white peony and white atractylodes porridge and so on.