In advanced stage of esophageal cancer, if it is ordinary gastric tube, it is usually changed once a week; if it is silicone gastric tube, it is usually changed once a month. In the advanced stage of esophageal cancer, some patients can not take in food and drink by mouth independently, so they need to inject some liquid food into the gastric tube, which can improve the nutrition supply of the patients and reduce the infusion. Generally speaking, ordinary gastric tube needs to be changed once a week, and silicone gastric tube can be changed once a month. And the medical tape fixed next to the nose or mouth needs to be changed regularly every day. Before feeding, the gastric tube should be observed to see if it is smooth, so as not to affect the normal use of the tube due to dislodging or folding. If the gastric tube is ruptured, broken or blocked, it needs to be replaced at any time. To sum up, gastric tube should be replaced regularly after being inserted in patients with advanced esophageal cancer, and the gastric tube should be replaced by professional medical personnel.