Palliative radiotherapy of esophageal cancer, esophageal cancer is the purpose of palliative radiotherapy can not reach the case of radical radiotherapy in order not to increase the suffering of the premise of esophageal cancer patients, and strive to prolong life and alleviate suffering. (1) poor general indication of the patient; lesion length of more than 8em; a supraclavicular lymph node metastasis or cervical lymph node metastasis; or vocal cord paralysis; or as a treatment by disease (distant metastasis has been, in order to ease swallowing difficulties trachea have breathing difficulties, and pressure pain from bone metastases, etc.) means. (2) contraindications cachexia, tracheal or esophageal perforation have been thin or clear signs of threatened perforation. (3) drilling of 60 esophageal cancer radiotherapy machines produce radioactive sources of rays or 4 – 18MV accelerator X-rays. (4) light irradiation method z range of disease at both ends of the radiation field over more than 2em wide 4-7cm. conditions permit should be used in treatment planning system design, then simulator correction. must ensure that the spinal cord dose below its tolerance dose. bone metastases in patients with esophageal cancer can be X-ray localization or clinical position.Palliative radiotherapy of esophageal cancer, dose: esophageal or tracheal compression to 4-5 weeks exposure, 5 times a week, each 2Gy, a total of 20 – 25 times the total 40 – 50Gy (according to the condition appropriate changes in dose); bone metastases each irradiation dose of 2 – 10Gy, total 10 – 3OGy (according to the disease, radiation dose, as appropriate, such as changes in the exposed area.)