Abstract: In order to evaluate the vehicle crashworthiness in frontal crash, a finite element model of a SUV with 100% overlapping rigid barrier was established by using HyperMesh simulation software.The vehicle simulation test conditions are set, and the collision data of the SUV are obtained.The vehicle crash energy curve, body B pillar acceleration, front door frame deformation, key position intrusion and other indicators were interpreted, and the crashworthiness of the vehicle was reasonably evaluated and the structure was improved, which laid a good foundation for the subsequent real vehicle crash test.