After gastrointestinal stent placement, the requirements are basically the same as those after gastroscopy. After pharyngeal anesthesia disappears, food can be eaten in about 1-2 hours without special requirements. Diet should pay attention to the following aspects: 1. No cold diet, food and water should not be too cold to avoid the problem of memory stent retraction and slippage; 2. Avoid large food, because the stent has a certain width, the volume of food more than 2cm is easy to block the channel, it is recommended to take fluid food, which is not easy to cause obstruction and can achieve nutritional support.