Esophageal cancer can be treated in thoracic surgery or oncology, depending on what kind of treatment is needed. If the size of esophageal cancer is small, the cancer is confined to the middle or lower part and easy to be removed, and there is no other distant metastasis, surgery can be performed in thoracic surgery, and lymph node dissection and radiotherapy and chemotherapy can be combined with the situation. The Department of Oncology can provide radiotherapy and chemotherapy for patients with middle and advanced esophageal cancer, and adopt targeted chemotherapy regimens, and can locate and treat the cancerous areas of esophageal cancer with radiation therapy according to the situation. Therefore, patients with esophageal cancer can be treated in thoracic surgery or in oncology, depending on the specific treatment method used.