Postoperative esophageal cancer patients who are physically weak may not undergo radiotherapy for the time being, and they can be given nutritional support therapy first to improve their physical quality before undergoing radiotherapy. Radiotherapy is one of the important treatment techniques for esophageal cancer, and some postoperative patients of esophageal cancer need radiotherapy. If postoperative esophageal cancer patients have poor health and consider that they cannot tolerate radiotherapy, they can be given nutritional support treatment first to improve their physical quality, and then undergo radiotherapy after their physical condition can tolerate it. In addition, most of the esophageal cancer patients can be effectively treated by radiotherapy if they cannot undergo surgery. Once diagnosed with esophageal cancer, it is necessary to consult doctor in time and choose appropriate treatment plan under doctor’s guidance.