Jia Zhangke focuses his own eyes upon the grassroot class,constantly concerning and recording joys and sorrows of this special population.We refine Jia Zhangke s films by means of semiotics,resolving them into grassroot symbols for purpose of study.Thus,the film portrait series of grassroot symbol groups running through Jia Zhangke s film have already formed Jia style.The uniqueness of Jia Zhangke s films is that he always integrates grassroot symbols into his own film perspectives,exposes them and describes them.