The treatment methods for vomiting in advanced gastric cancer patients are as follows: 1. remove the tumor; 2. if the tumor cannot be cured, palliative treatment can be used to partially remove the stomach or tumor, connect the stomach with the small intestine to form a short circuit, so as to facilitate the passage of food, and dispose of the stent in the pylorus to let food and water flow to the duodenum through the stent orifice to relieve the vomiting symptoms of advanced gastric cancer patients. There are two types of vomiting in advanced gastric cancer patients, one is gastric cancer in the sinus or pyloric duct, which causes pyloric obstruction and food or liquid cannot flow into the duodenum and is vomited after exceeding a certain amount. The other is that all the cancerous tissues in the stomach wall of the stomach body have been invaded and the stomach wall is unable to move. Once the movement of the stomach wall is lost, the things in the stomach cavity will collect at the bottom of the stomach and the upper part of the stomach body and cannot flow downward, which will cause vomiting after a long time or after a large amount.