There is no authoritative information on how long a patient can live with thyroid cancer metastasized to the esophageal trachea, and the patient’s survival can generally be judged based on the patient’s five-year survival rate, which is 41.51%. Patients can be treated with chemotherapy and surgery. There is no specific data on the survival time of thyroid cancer patients who have metastasized to the esophageal trachea. When patients with thyroid cancer have metastasized to the esophageal trachea, it means that the patient’s condition has already entered into stage IV, and the patient’s five-year survival rate is only 41.51%, which is a poorer prognosis after treatment. Patients with thyroid cancer can be treated with chemotherapeutic drugs such as 5-fluorouracil injection and dacarbazine injection as prescribed by doctors. Patients can also take surgical treatment, such as total thyroidectomy, extended resection and repair surgery. When esophageal tracheal metastasis occurs in patients with thyroid cancer, it does not indicate the specific life expectancy of the patient. It is recommended that patients should seek medical treatment in time and follow the doctor’s instructions.