Cholecystectomy is currently the main treatment for cholecystitis and gallstones. The gallbladder is an important organ for storing bile. Bile plays an important role in the digestion of food, the decomposition of fat, and the absorption of nutrients. The gallbladder has a regulatory function for the entry of bile into the intestinal tract. Once the gallbladder is removed, the gallbladder’s function of storing and regulating bile almost ceases to exist. In order to adapt to a series of physiological changes brought about by gallbladder removal, patients should pay particular attention to their diet. 1, 1-2 days after surgery, due to the reduction of gastrointestinal peristalsis and bile secretion, fasting should be used as appropriate, and intravenous infusion is appropriate to supplement various nutrients. From the 3rd day onwards, a liquid diet, such as rice soup, soy milk, lotus root powder, fruit juice, etc., can be given, and then gradually changed to skim milk with sweet bread, rice porridge, tofu soup, date paste and pasta, etc. 2. The intake of fatty foods should be reduced within 1 month after surgery, and high-fat and fried foods are prohibited. After gallbladder removal, the function of regulating the bile discharge into the intestine will be lost, and the digestive ability of fat will be weakened accordingly. Especially in a short period of time to digest a larger amount of fatty foods, that is not enough. Otherwise, it is easy to cause abdominal distension, diarrhea and indigestion. Reduce fat intake, mainly refers to do not eat or minimize the consumption of fatty meat, animal offal, egg yolk and fried food, but also should not eat all kinds of high-fat, high-calorie “fast food”. Cooking with animal oil as little as possible, can increase the amount of vegetable oil. Dishes should be steamed, stewed, cold mainly, less fried, fried dishes, especially to avoid spicy and irritating food, to abstain from drinking alcohol, so as to reduce the adverse stimulation of the bile duct. 3, gradually strengthen nutrition. After 1 month of cholecystectomy, the diet need not be too light, and strengthening the necessary nutritional supplements will help the patient’s early recovery after surgery. After a few weeks of adaptation, the common bile duct connecting the liver and duodenum gradually extends and expands, replacing the gallbladder’s function of storing bile. If the digestive function is not abnormal, you can eat a normal diet, increase protein intake appropriately, eat some protein-rich diet, eat lean meat, fish, beans every day, if you can drink a glass of milk is better. If you are not used to eating milk or fish, you can eat more soy products and mushrooms to make up for the lack of animal protein. In principle, it is not advisable to consume too much fat and cholesterol after cholecystectomy, but it is not necessary to restrict fat excessively, because a certain amount of fat in the intestine is necessary to stimulate bile secretion and expand the volume of the common bile duct and keep the bile duct smooth. In addition, eating more high-fiber and vitamin-rich food is also very beneficial to the patient’s recovery after surgery. 4.Increase the number of meals appropriately. It should be noted that each meal should not be eaten more than once, especially within 3-6 months after surgery, 4 meals a day is good, less and more meals can reduce the burden of the digestive system, which is conducive to the recovery of health after surgery. It is better to eat some vinegar every day because vinegar will enhance the digestive ability of the stomach and also regulate the pH in the intestine to facilitate the function of bile and promote the digestion of fatty foods. Drinking tea regularly and eating more fresh fruits and vegetables also help the digestion and absorption of food.