Patients with reflux esophagitis should pay attention to small meals, less greasy food, less spicy and irritating food in their diet. Reflux esophagitis is mainly caused by the relaxation of the esophageal sphincter, gastric acid flows into the esophagus through the relaxed sphincter, resulting in damage to the esophageal mucous membrane wall and the emergence of reflux esophagitis. For these patients, it is recommended that they should eat fewer and more frequent meals, and consume less greasy food, spicy and cold stimulating foods, and avoid drinking strong tea and strong coffee, etc., so as to reduce the secretion of gastric acid, promote digestion of gastric contents, and reduce the incidence of reflux esophagitis. In addition, it is necessary to avoid lying down immediately after eating or drinking to avoid the reflux of gastric acid. Severe cases need to elevate the head of the bed when sleeping. Eat more vegetables and fruits in your daily life, and take appropriate exercise. The general principle of eating is to eat easily digested and absorbed food, avoid irritating food, and reduce the retention time of gastric acid in the stomach to avoid acid reflux.