Diet after electronic endoscopic resection of gastric polyps should pay attention to light, easy to digest, balanced nutrition, need to be gradually transitioned from fluids and semi-fluids to a normal diet, to avoid eating stimulating food. Gastric polyp resection under electronic endoscopy has certain damage to the gastric mucosa, so after the operation, patients should fast and abstain from food and water for at least 4~6 hours, and they can drink some warm water in small amount first, and then gradually start to eat if there is no obvious discomfort. Patients should eat mainly liquid food, such as millet porridge, etc., if there is no abnormal situation, according to the patient’s condition, can gradually transition to semi-fluid food, such as rotten noodles, egg custard, etc., and finally return to normal diet. In addition, the patient’s diet should also pay attention to light, easy to digest, and maintain balanced nutrition, can eat more fresh fruits and vegetables, egg custard, milk and so on. But should pay attention to avoid eating too cold, too spicy, too hot, too hard and other stimulating food, and fried, barbecue and other difficult to digest food, avoid drinking strong tea and coffee, in order to avoid stimulation of the gastric mucosa. Patients should also avoid overeating, try to chew slowly, eat more meals, quit smoking and drinking, and exercise properly after meals to promote food digestion. If patients experience obvious abdominal pain and bloating, nausea and vomiting, or blood in the stool after surgery, it is recommended that they consult a doctor in time and receive treatment actively, so as to avoid delaying their condition.