Esophageal cancer surgery, because of its long duration and trauma, has a great impact on patients’ respiratory, circulatory and digestive functions, so it is easy to have post-surgical complications, mainly in the following aspects: 1. pulmonary complications: respiratory complications are the most common post-surgical complications of esophageal cancer patients, including pneumonia, atelectasis, respiratory failure, etc. 2. cardiovascular system complications: because of the age accompanied by 3.Post-operative bleeding: Post-operative bleeding of esophageal cancer is mainly caused by improper treatment of blood vessels and extensive adhesions in pleural cavity. 4.Anastomotic fistula and thoracic gastric necrosis perforation: Anastomotic fistula and thoracic gastric necrosis perforation are also the most common post-operative complications of esophageal cancer patients. Perforation is also one of the most serious complications common after esophageal cancer surgery, mainly including intra-thoracic anastomotic fistula, thoracic gastric necrosis perforation, and cervical anastomotic fistula. 5. Other common postoperative complications of esophageal cancer: they also include celiac disease, anastomotic stenosis, acid reflux, injury of laryngeal nerve, gastric emptying disorder, diaphragmatic hernia, simple abscess chest, incision infection, etc.