Choledochal cyst is a rare congenital anomaly of the biliary system in the western countries, but has a higher rate of occurrence in Asia. This disorder is usually diagnosed during childhood and is more common in females. After being described first by Vater in 1723 [
1], choledochal cysts are now classified using the Todani modification of the Alonzo-Lej classification system [
2]. The most common is type I consisting of cystic, fusiform dilatation of the extrahepatic common bile duct. Untreated choledochal cysts are associated with complications such as recurrent cholangitis, acute pancreatitis and cholangiocarcinoma. The standard procedure is complete resection of the cyst with a Roux-en-Y hepaticojejunostomy anastomosis. Cystoenterostomy is no longer recommended [
3]. Recently, many centers reported their experience with laparoscopic resection of the cyst [
4]. Although this approach has been shown to be feasible and safe, most reports emphasized the technical challenge of the procedure as well as the long operative times [
5]. The use of da Vinci Robotic Surgical System (Intuitive Surgical, Sunnyvale, California) provides the advantages of three-dimensional visualization through a stereoendoscope, tremor reduction, motion scaling, and wristed instrumentation with additional degrees of freedom compared to standard laparoscopic instruments [
6,
7]. We report the application of da Vinci Robotic Surgical System in type I choledochal cyst excision in a 14-year-old girl.