For inoperable advanced esophageal cancer, some patients tend to give up the treatment, resulting in esophageal stenosis or even complete occlusion, and in the later stage, they can only rely on intravenous injection for nutrition, which seriously affects their quality of life. Stenting is a safe and effective way to treat cancerous esophageal stenosis, in which the esophageal stenosis is dilated and stents are inserted under direct endoscopic vision to solve the feeding problem of patients without surgery. Endoprosthetic stenting Endoprosthetic stenting: memory alloy stent or stainless steel stent, non-membrane stent or membrane stent, anti-reflux stent, radiopaque stent, etc. can be chosen according to the patients’ conditions, and for those who may have esophageal-tracheal fistula or have already had esophageal-tracheal fistula, they must choose membrane stent, and for patients with cancer of the lower part of the esophagus and pancreatic cancer, they should use anti-reflux stent. Internal stenting is mainly applied to patients with middle or late stage esophageal cancer who are not suitable for surgery or unwilling to have surgery; or those with poor systemic condition who are not suitable for radiotherapy or chemotherapy, as well as those with postoperative anastomotic stenosis, anastomotic fistula, and esophageal-tracheal fistula. Through this method, the stenosis or obstruction can be quickly relieved, the eating function of patients can be restored, the quality of life of patients can be effectively improved, and more chances of treatment and survival time can be won.