Bile duct injury is one of the serious complications associated with laparoscopic cholecystectomy. If the bile duct injury is circumferential or the bile duct is transected, conversion to open surgery is usually done. With the continuing development of laparoscopic techniques, procedures that previously seemed implausible can now be performed laparoscopically. We describe a case of successful laparoscopic end-to-end choledochocholedochostomy after the common bile duct was mistaken for the cystic duct intraoperatively and transected.