Acid reflux after cardia and partial gastrectomy can be improved by diet adjustment and medication. 1. Dietary adjustments: maintain a healthy diet in daily life, eat less and more frequent meals, focus on light and easy-to-digest food, and avoid foods that stimulate the gastric mucosa, such as chili peppers and barbecue, which will aggravate the symptoms of acid reflux. 2. Medication: Gastric stimulating drugs such as domperidone, mosapride, itopride, etc. can be taken under doctor’s instruction to promote the emptying of food and alleviate the symptoms of acid reflux; drugs such as omeprazole, cimetidine, etc. that inhibit the secretion of gastric acid as well as gastric mucosal protectants such as magnesium alumina carbonate and Rebapate can be used for the treatment. After dietary adjustments are ineffective in the case of acid reflux after cardia and partial gastrectomy, it is recommended to go to the hospital for targeted treatment under the guidance of the doctor. Please do not take medication by yourself to avoid delaying the condition.