Biliary T-tube drainage is a common method of biliary surgery, but some patients are unable to remove the T-tube because of distal bile duct inaccessibility and pain after clamping. There are several reasons for this, which can be addressed according to the situation.1. Residual stones in the distal common bile duct. Stones can be removed via the T-tube sinus tract 4-6 weeks after surgery in two ways: under choledochoscopy with a lithotripter mesh and directly under radiation with a lithotripter. Tian Mingguo, Department of Hepatobiliary Surgery, People’s Hospital of Ningxia Hui Autonomous Region 2. Tumor of the distal common bile duct. Both the first undetected tumor of the jugular abdomen and the advanced malignant tumor of the bile duct and its peribiliary duct can be treated by placing a support drainage tube into the distal bile duct and duodenum via the T-tube sinus tract, which is simple and easy to perform, and can be placed either under choledochoscopy or under radiation. For jugular abdominal tumors not detected at the first surgery, this method allows bile to flow into the intestine while awaiting major surgery, facilitating digestion and helping with nutritional support. For advanced malignancies, it can significantly improve the quality of life. We have successfully treated a large number of patients in this category in our clinic with good outcomes.