Objective:Establish a 3D FE(finite element) model with geometric and mechanical similaritiy to the physical implant prosthese components. Methods:Use the 3D CaMega optical scanning system, to establish a CAD model of implant and abutment,which is imported into CAE software(ANSYS 11.0) for meshing to establish the FE model,and the parameters of the FE model is then adjusted according to the load-deformation test data. Results:According to experimental data,the 3D FE model of implant prosthese established has the geometric and mechanical similarity to implant prosthese components. Conclusion:The FE model of implant denture components established with 3D CaMega optical scanning and by correcting FE model parameters can reflect their physical geometric shapes and mechanical properties.