Eligibility Criteria Inclusion Criteria: 1. ≥ 70 year-old, 2. Thoracic segment esophageal cancer with stage II to IV (supraclavicular lymph node metastasis only), 3. No previous surgery, radiotherapy or chemotherapy of cancer was allowed, 4. Estimated survival time ≥ 3 months, 5. KPS > 60, 6. No serious diseases of important organs, 7. Signed consent forms voluntarily.