Based on distinct patients and different design project,individual harmed model and restoration model can be built. According to the 3D simulation of maxilla,skull and dentition,standard mathematical model and entity model for maxilla repair can be provided. On the basis of scaned skull image,using CT image reconstruction technique and 3D finite element model (FEM),and the maxillofacial repair by restoration with rapid prototyping production technique,a good 3D FEM of normal maxillary and dentition and restoration are constructed. Then,configuration and function of maxillofacial are rebuilt after repair. 3D FEM of normal maxillary,dentition and restoration by CT image reconstruction,3D FEM and rapid prototyping production technique can be achieved with fine appearance,low cost and less post-operative complications. This method offer a complete idea for maxilla and dentition repair in clinic research.