Bile duct cancer surgery includes radical resection and palliative resection, and the surgery includes biliary-intestinal anastomosis with internal drainage. Patients who undergo different surgeries have different recurrence rates: 1. for radical resection, the general five-year survival rate reaches 17%-26%, and about 30% of patients basically recur within five years; 2. if R0 resection of tumor margins is achieved, including distal and proximal negativity, patients’ five-year survival rate can reach more than 40%, and The average survival of patients with general surgery is 13 months, and most patients are likely to recur within one year; 4. Palliative surgery, including internal and external PTCD puncture and drainage, internal stenting or biliary-intestinal anastomosis and drainage, generally has a one-year survival rate of <50%, and more than 50% of patients may recur within one year.