Living donor liver transplantation is widely accepted as an life-saving treatment for patients with end-stage liver diseases. Careful donor selection is essential to maximize the success and minimize the risk of postoperative complications in donors and recipients. Mapping of biliary anatomy is one of the critical assessments for donor selection and surgical planning ,Biliary reconstruction is considered as the "Achilles heel" of liver transplantation and adequate imaging assessment of biliary anatomy can largely benefit the biliary anastomosis. Preoperative imaging assessment of biliary anatomy is good for the selection of donors but may not indispensable for surgical planning and Intraoperative confirmative assessment of biliary anatomy with IOC was essential