Objective To investigate the surgical technique of reduced sized liver transplantation. Methods A reduced size liver transplantation was successfully performed on a 11-year old girl with incurable caroli′s disease. Results The recovery of liver graft function was good after the operation in this patients without complications. Conclusion Reduced size liver transplantation is a safe and effective technique for pediatric liver transplantation to provide liver graft. Authors introduced their experiences of surgical technique in this patient.