Abstract:Traffic accident reconstruction face the body characteristic of victim according as the accident imprint left by the brakes, automobile body and other objects deformation, human body injury and other information, it establishes the automobile and human body model conform to the characteristics of victims. The numerical simulation technique is used to acquire vehicle speed before collision and location of vehicle-pedestrian contact. With multi-body dynamics and human injury analysis theory, obtains the vehicles distortion and the human body damage spot biological mechanics value. Carries on the practical application to the vehicle-pedestrian collision accident case, the method introduces in detail the model building, the collision contact the definition and the value simulation process, the value simulation result which and the scene survey and medical examiner the computation obtains appraise the result to tally, thus provides the theory basis and the value reference for the traffic accident responsibility authentication.