为了在碰撞事故中有效地保护乘员的生命安全，汽车首先必须具备安全车身，以确保事故中乘员的生存空间及缓和冲击；其后应配置合理的乘员约束系统，以避免或减缓乘员与车内结构二次碰撞造成的伤害。详细介绍了车身构件碰撞性能的试验方法和研究结果。 In order to effectively protect the life and safety of occupants in a collision, the car must first have a safety body to ensure the crew’s living space and shock mitigation in the accident. Thereafter, a reasonable occupant restraint system should be deployed to avoid or slow down the occupant and the vehicle Damage caused by secondary collision of structures. The test methods and research results about the impact performance of body components are introduced in detail.