Objective To investigate clinical therapeutic effect and complication applying autogenous iliac bone combined with allogeneic cortical bone reconstructing the collapse of the tibial plateau fracture. Method June 2007 ~ December 2008 combined with autogenous iliac bone allograft reconstruction of tibial plateau bone collapse in 27 cases. According to Schatzker classification of tibial plateau fractures, Ⅱ fracture in 19 cases, Ⅲ fracture in 8 cases, all patients underwent preoperative lateral radiograph line is, CT scan and reconstruction, in order to accurately understand the extent of fractures and fracture collapse and crush Flip the direction of debris. Where the fracture collapse> 5mm, and no joint degeneration before injury who are treated as indications of the surgical method. Results 27 patients received more than 1 year follow-up after an average follow-up of 1.5 years (1 ~ 2.5), the fractures healed, no postoperative infection, no wound edge skin necrosis, no necrosis of fracture fragments. Conclusion Applying autogenous iliac bone combined with allogeneic cortical bone reconstructing the collapse of the tibial plateau fracture may compensate for the lack of allogeneic cortical bone, and enhance fracture healing.