The subject of this paper is the adaptation of the Chinese immigrants in America. Two eras of big waves of Chinese immigrants to American will be talked about, namely Chinese immigrants from 1848 to 1920, and Chinese immigrants since 1965 until present. The aim of this paper is to discuss how the Chinese immigrants adapted to American society through assimilation, and to argue whether it is good to be assimilated, since they risk loosing their identity and community by changing themselves.