Our department performed the first laparoscopic cholecysto-dilated bile duct resection and jejuno-choledochal Roux-Y anastomosis in Qingdao In July 2014, a 2-year-old girl of 9 months old came to our department with intermittent abdominal pain with clay-like stools and was diagnosed as congenital bile duct dilatation after examination. Congenital common bile duct cyst, also known as cystic dilatation of the common bile duct, is mostly a congenital developmental malformation. The incidence of this disease is low, and when found, it is mostly combined with hepatic impairment and pancreatitis, and surgical treatment requires removal of the gallbladder, dilatation of the bile duct, and anastomosis of the jejunum to the common hepatic duct, which is a difficult operation. The previous open surgery required a 10-cm long incision in the upper abdomen, leaving a large surgical scar in the abdomen after surgery, which greatly affected the child’s future life. After a thorough evaluation of the child’s physical condition, Zhang Lei, director of the Department of Pediatric Surgery at Qilu Hospital of Shandong University (Qingdao), decided to perform a difficult laparoscopic cholecysto-dilated biliary resection and jejuno-choledochal Roux-Y anastomosis for the child, which is the first of its kind in major hospitals in Qingdao. Director Zhang Lei said that he has done more than 30 cases of laparoscopic treatment for this disease in Qilu Hospital of Shandong University in Jinan. After 3 hours of surgery, the operation was completed successfully. In addition to a puncture hole at the navel, there were only 2 puncture openings of about 0.8 cm each in the right lower and upper abdomen of the child, which greatly reduced the trauma of the surgical incision. On the 5th day after the operation, the child was discharged from the hospital successfully, and the liver function improved significantly at the time of discharge, and the bilirubin decreased to basically normal.