There are increasing incidence of Hangman fracture with the development of society and industrialization. The research on upper cervical spine concerning hangman fracture is able to be well carried on with The finite element method(FEM) developing. The research includes a biomechanical experiment of cadaver specimens and FEM analysis accordingly. The finite element models of geometrical complex structure from medical images are generated automatically, the research presents simulation of different surgical option of hangman fracture, testified the models by loads, calculated the stabilities and stress of models. The corresponding results were summarized with experiment of cadaver specimens. The research demonstrate that clinical therapeutics is an good option for Hangman fracture with C2-3 inter-vertebral disc injury.