Congenital choledochal cyst is one of the most common biliary malformations, presenting with right upper abdominal pain, fever, jaundice, and imaging will reveal a cystic occupancy in the porta hepatis. Early surgery is effective. Cholangitis, cirrhosis and cholangiocarcinoma can occur if not treated with timely surgery. Complete resection of the cyst with hepatic duct jejunostomy should be performed as early as possible. This surgery is one of the major pediatric abdominal surgeries. Conventional open abdominal surgery has large incisions, heavy injuries, heavy bleeding, slow postoperative recovery, and the interference of open abdominal surgery on the abdominal cavity will lead to postoperative enterocele and incisional infections, and the lifelong incisional scars will leave a shadow on the child’s psyche. Laparoscopic choledochal cyst radical surgery overcomes the shortcomings of traditional open surgery with big damage, greatly reduces the blow to the patient, the scar is not obvious, due to the image magnification function of laparoscopy, so that the doctor is good to operate under the enlarged surgical field, which is conducive to the separation of the cysts and the fine and accurate anastomosis, to maximize the avoidance of tissue damage, increase the precision of the operation, and reduce the risk of the operation. Laparoscopic choledochal cyst radical surgery has matured, and experts at home and abroad believe that laparoscopic choledochal cyst radical surgery is the most ideal treatment method.