Objective    To build a finite element model (FEM) of human thorax for individual protection research.     Methods    Materialise Mimics medical imaging software was used to rebuild 3D model of human thorax based on CT images. The model was meshed and the material properties of various parts of the model was defined in ANSYS ICEM CFD. The FEM was completed and validated by ANSYS LS-DYNA.     Results    The human thorax FEM with approximately topology was developed. The simulative result was consistent with the result of existing cadaveric experiment.     Conclusion    The FEM is  rebuilt with human tomography images in professional software and meets the requirement of numerical analysis that simulating the impact on human thorax in personal protection research.