本文从“们”的语法功能和使用变化情况出发,考察了“们”由一个表示复数的助词,在发展的过程中,一方面保留了助词的用法,一方面发展出词缀这一性质,从而具有双重身份的过程。并探讨出现这种状况的原因,得出使用频率是使“们”性质发生变化的主要因素。并对现代汉语中“们”的使用情况作了分析,具体确定了“们”的性质。 In this paper, starting from the grammatical functions and usage changes of “” ’’ s, this paper examines the use of the auxiliary of “” by a plural, which preserves the usage of auxiliary in the process of development. On the one hand, A nature, which has a dual identity process. And to explore the reasons for this situation, draw the conclusion that the frequency of use is the main factor that changes the nature of “people ”. The author also analyzes the usage of “people” in modern Chinese and defines the nature of “people”.