In recent years, laparoscopic cholecystectomy has been widely used. This surgical method has fewer complications and exact results, and is the most suitable surgical method for treating benign gallbladder diseases (cholecystitis, gallbladder stones). However, another important function of the gallbladder is to regulate the entry of bile into the intestinal tract. Once the gallbladder is removed, its function of regulating bile excretion no longer exists, and the physiological integrity and functional coordination of the biliary tract are damaged to a certain extent. Disorders, such as steatorrhea, vitamin malabsorption and other syndromes, etc. Also, although gallstone patients have their stones removed through surgery, they do not change the disorder of lipid metabolism that produces stones, and this metabolic disorder also easily leads to other diseases, such as hypertension, arteriosclerosis, heart disease, etc. Therefore, after gallbladder removal, we should pay more attention to the reasonable matching of dietary structure, correct the bad dietary habits, and continue to maintain the dietary principles of low calorie, low fat, high protein and high vitamin, generally speaking, we should grasp the following seven links. First, control calories to reduce weight: control the total amount of food eaten, each meal should be seven or eight minutes full (especially dinner), keep the weight in the ideal range, overweight and obese people should lose weight. Second, reduce fat and cholesterol: pay attention to a reasonable combination of meat and vegetables, try to reduce the fat and and cholesterol content of food, after gallbladder removal, due to the lack of sufficient concentrated bile, if excessive intake of fat and cholesterol, will cause digestive disorders, heavy fat diarrhea, resulting in malnutrition, usually advocate the use of vegetable oil, avoid the intake of animal oil, try to eat less thick meat soup, thick chicken soup, thick fish soup and other foods. Reduce the intake of nuts with high fat content such as peanuts, melon seeds, walnuts, almonds, pistachios, etc. Strictly limit animal offal, egg yolk, squid, sardines, animal brains, fish eggs, crab yolk and other foods containing high cholesterol, eat up to four eggs per week, avoid overeating or excessive hunger, try to do a small number of meals. Third, high-quality protein to supplement: supplement sufficient protein, which is conducive to repairing liver cell damage caused by cholecystitis and cholelithiasis, you can choose low-fat high-quality protein based on fish, shrimp, poultry, tofu and less oily soy-based post-cholecystectomy diet maintenance way products, etc. The fourth way to maintain the diet after cholecystectomy: vegetables and fruits to ensure health, daily vegetable intake should be greater than 500 grams. There are at least 2 kinds of fruits, vegetables and fruits are rich in vitamins and minerals, which help improve the patient’s metabolic disorder and facilitate recovery, vegetables and fruits are also rich in dietary fiber. Can reduce the formation of cholesterol, reduce the absorption of fat and sugar, thus playing a role in reducing blood lipids and blood sugar. Fifth, coarse grains are beneficial to choose: eat more food containing high dietary fiber, including corn, millet, sweet potatoes, oats and other coarse grains to promote bile excretion. Sixth, tobacco, alcohol and spices need to quit: patients who have had their gallbladders removed. Be sure to quit smoking and alcohol, because smoking and alcohol abuse will increase the burden on the liver. Eat less spicy and other stimulating food, such as onions, garlic, ginger, chili and pepper, etc. Seven, pay attention to cooking methods: cooking should strive to light, the best use of stew, steaming, simmering soup and other methods. Avoid deep-frying, barbecue, smoking, half-cooked boiling methods, and use as little seasoning as possible, so as to suit the changes in biliary function after surgery and reduce the burden on the digestive system. A normal gallbladder has the functions of storage, concentration, bile evacuation and secretion. The health and longevity of each person depends 60% on himself, 15% on genetic factors, 10% on social factors, 8% on medical conditions, 7% on climatic factors, and 48.9% of the underlying causes of human death are poor lifestyle and behavior, 23.2% are biological genetic factors, 17.6% are environmental factors, and 10.3% are medical service factors. Therefore, we need to develop good lifestyle habits and a scientific diet in our daily life.