[Objective]We have made the entity model of human being injured irregular bone model by using rapid prototyping technogy,and discussed the value and prospect of rapid prototyping technology in clinical orthopedics.[Method]This group included 23 cases:15 cases of calcaneus fracture,4 cases of fracture of tibial plateau,2 cases of fracture of first lumbar vertebral body,1 case of scapula fracture,1 case of dysplasia and aseptic necrosis of femoral head.According to the data gotten from CT tomographic scan of 23 cases which had fracture of irregular bone,we made the entity model of bone injury using professional software and equipment,and put it into clinic practice to study the state of illness and tried to assist the operative treatment.[Result]Application of rapid prototyping technology helped to study the state of illness and assisted the operative treatment,and brang on a new mechanism of the trauma and operative methods.By using it we also shortened the operative time and reduced the hemorrhage in the operation,and improved the rate of success in the first operation in order to avoid the second operation.All these cases have received good treatment effects.[Conclusion]The rapid prototyping technology has broad prospect in clinical orthopedics.