Esophageal cancer, i.e. esophageal cancer, the success rate of mid-stage surgery can generally reach more than 95%. Esophageal cancer belongs to malignant tumor of esophagus, after preoperative gastroscopy, as well as chest CT, color ultrasound and other assessments, if it is in the middle stage and there are indications for surgery, treatment is mainly based on surgical excision of lesions + lymph node dissection, the surgical technique of esophageal cancer is mature and the success rate is high. Esophageal cancer invades the muscular layer and reaches the outer membrane of the esophagus, but does not invade tissues beyond the outer membrane is in the middle stage, which can be surgically resected for the purpose of radical treatment, but different surgical methods should be adopted according to the location. For esophageal cancer in the lower esophagus, it can be radically treated by opening the chest on the left side, which is relatively less difficult and has a higher success rate; for esophageal cancer in the middle esophagus, it can be treated by combined thoracoabdominal incision, which is relatively more difficult; while for tumor in the upper and middle esophagus, it usually needs to be treated by three incisions: neck, chest and abdomen, which is relatively complicated, difficult and has many complications, thus the success rate is relatively The success rate is lower than the first two. Generally speaking, mid-stage esophageal cancer surgery is a routine surgery for esophageal tumors, and the success rate of this surgery can reach more than 95% under the operation of experienced thoracic surgeons with careful operation and less complications.