It is better to eat rice porridge, egg custard and noodles after gastroscopy. Gastroscopy can cause damage to the mucosa of the digestive system, avoid eating food that is difficult to digest after gastroscopy, and should be based on a light, easy-to-digest diet. Too rough food will affect the mucosal inflammation subside, resulting in increased gastrointestinal burden, rice porridge is rich in nutrients and B vitamins, which can protect the gastric mucosa. Drinking rice porridge can be digested and emptied more quickly by the body to promote the decline of mucosal inflammation. Egg custard is rich in protein and is a light, easy-to-digest food that replenishes the nutrients that the body needs, and the protein can promote the repair of the gastric mucosa. Noodles are easily digested and absorbed, providing the carbohydrates needed by the body, and noodles do not cause irritation to the mucosa of the digestive system. Smoking and drinking should be avoided after gastroscopy to avoid problems with wound repair, which may affect recovery.