论述了汽车轻量化的意义、表征参量、评价方法、实施路径和方法；轻量化的设计，零部件和构件的功能与材料性能参量的关系以及先进成形技术的应用。结合近期轻量化的相关进展和笔者的工作，对汽车轻量化进行了全面系统的论述，以期给出关于汽车轻量化较完整的概念和认识。

This paper elaborates on the significance, description parameters, evaluation methods, and implementation ways of the lightweighting of automobile. Lightweighting design, the relationship between the performances of auto parts & components and the property parameters of materials, and the application of advanced forming technique are also elaborated. According to recently related progress of lightweighting and author's working, lightweighting of automobile are comprehensively and systematically overviewed.