Gastric emptying disorder, commonly known as gastroparesis, refers to delayed gastric emptying caused by various reasons and is one of the common complications of abdominal surgery. Gastroparesis one year after cardia cancer surgery may be related to bad dietary habits, concomitant other diseases, intraoperative damage to vagus nerve and other reasons. 1. Bad dietary habits: surgery itself will affect the function of gastric peristalsis. If a large amount of high sugar, high fat and high protein food is consumed at this time, it will aggravate the burden on the stomach, which will lead to slowing down of gastric peristalsis and cause gastroparesis. 2. Accompanied by other diseases: if cardia cancer patients suffer from diabetes mellitus, elevated blood sugar will cause certain neurotoxic damages, which will weaken the function of vagus nerve to promote gastric emptying, resulting in gastroparesis; high blood sugar will also make the food in the patient’s stomach stay for a long time, which will lead to gastric palsy caused by the slowing down of gastric emptying. 3. Injury to vagus nerve during surgery: if vagus nerve is injured by mistake during surgery, it may lead to the disappearance of peristaltic movement of stomach, thus causing gastroparesis. If the patient has symptoms such as persistent epigastric fullness, nausea and vomiting after cardia cancer surgery, he/she should go to the hospital in time and get treatment under doctor’s guidance.