The esophageal stent opens up a new treatment pathway for patients with esophageal strictures. The internal stent is mostly made of titanium-nickel memory alloy, which is easy to be inserted because of its responsiveness to temperature maintenance and its reticular tissue structure. The surface is covered with medical silicone rubber film, which has good compatibility and can effectively prevent the growth of esophageal wall granulation and gastric juice food reflux. It is a good solution to the patient’s feeding problem.