Xuanwu Hospital of Capital Medical University has a long history of development of gastrointestinal endoscopy and laparoscopic surgery. In the 1980s, it was the first in China to carry out choledochoscopy and duodenoscopy for the treatment of intra- and extra-hepatic bile duct stones, and the first to carry out laparoscopic cholecystectomy in Beijing in 1991. that guides precise laparoscopic surgery. Based on decades of clinical experience in biliary surgery, he has innovatively proposed a combined laparoscopic choledochoscopic approach to remove stones or polyps by preserving the gallbladder, and has proposed a unique concept of weighing the pros and cons of biliary preservation and criteria for determining whether biliary preservation surgery is appropriate in order to improve the benefit rate of patients undergoing biliary preservation surgery. It has been clinically proven to benefit a large number of patients who are suitable for biliary surgery, and to save those patients who are not suitable for biliary surgery from the risk of having their gallbladders removed again within a short period of time after biliary surgery. Wang Yuehua, Department of General Surgery, Xuanwu Hospital, Capital Medical University