Abstract: Objective:To develop a kind of digitized method to construct three dimensional finite element（3-D FE） model which may express biomechanic dynamic state characters of human craniofacial complex.Methods:A voluntary patient of skeletal class Ⅲ malocclusion in permanent dentition was chosen as a model.SCT image reconstruction technique and 3-D FEM were used in combination with Mimics software and HyperMesh software.Results:A 3-D FEM of human craniofacial complex was constructed.It included 108818 elements and 195654 nodes.lt could be observed at any dimension.Conclusion:The method to develop a model of human craniofacial complex adopting SCT 3-D image reconstruction technique,Mimics,and hypermesh are rapid and effective.