Obstructive jaundice can be caused by inflammation of the hepatobiliary ducts, stones, tumors, trauma, pancreatic and duodenal tumors, etc. It is manifested by symptoms such as yellowing of the skin and sclera, pain in the upper abdomen, and impairment of liver function. Our department adopts ultrasound, CT, MRI and other imaging techniques to accurately display the patient’s hepatobiliary system and surrounding large blood vessels, to make accurate diagnosis and comprehensive assessment of the obstruction site, nature and relationship between the tumor and blood vessels, and to design a reasonable surgical plan according to the preoperative assessment results. For patients with hepatobiliary inflammation and stones, endoscopic sphincterotomy for stone extraction, bile duct exploration for stone extraction and T-tube drainage, bile-intestinal anastomosis, hepatic lobectomy, and Oddi sphincterotomy and formation can be performed according to different conditions; for critical cases, nasobiliary drainage can be performed, and patients can be treated by elective surgery after passing the dangerous period. 2.For malignant obstructive diseases such as pancreatic head cancer, lower bile duct cancer and peri-pot belly cancer, pancreatic head duodenectomy is used; 3.For patients with hilar cholangiocarcinoma, radical surgery for hilar cholangiocarcinoma is performed by choledochotomy + high biliary-intestinal anastomosis and combined hepatic lobectomy; 4.For obstructive jaundice caused by various advanced malignant tumors, percutaneous percutaneous hepatic choledochal drainage (PTCD), percutaneous (PTCD), percutaneous percutaneous bile duct drainage (PTCD), percutaneous percutaneous internal and external bile duct drainage, bile-intestinal anastomosis, and bile duct stenting.