How many years can one live after cholangiocarcinoma drainage mainly depends on the severity of the disease, so no specific answer can be given. If cholangiocarcinoma is in early stage and the patient is in good physical condition, the prognosis is usually good. It is recommended to perform radical resection through surgery in time when the disease is diagnosed. However, it should be noted that surgical bile drainage must be operated strictly to avoid infection and increase the risk of surgery. Secondly, cholangiocarcinoma patients often have the symptom of anorexia, so they should be given nutritional treatment to regulate their physical condition. If the cancer cells have already metastasized, it may threaten the patient’s life. In this case, besides surgical treatment, radiation therapy and chemotherapy are also needed to inhibit the development of the disease. To summarize, the specific survival time after cholangiocarcinoma drainage is related to many factors. For example, the severity of the disease, physical quality, treatment means and so on, it is impossible to estimate the survival time precisely. It is suggested that patients should seek medical treatment immediately and follow the doctor’s instructions.