After cholecystectomy, the intake of fat should be restricted, especially foods containing too much animal fat should not be eaten at one time. Generally eat less and eat more meals, and one meal should not be too full. The food content can be low-fat semi-liquid food or low-fat soft rice, such as porridge, noodles, bread, biscuits, tofu, egg white, skim milk, low-fat lean meat, low-fiber vegetables and fruits. Stewing, steaming and boiling are all suitable cooking methods. According to the tolerance to food, fat control can be changed from 20 grams per day to 40 grams per day. After a period of adaptation after the operation, gradually let go of the intake of fatty food, step by step slowly.