The review articles about organizational socialization in the past mostly focused on one or two theoretical perspectives, and primarily focused on the antecedents and outcomes of socialization. Since the lastest integrative reviews, organizational socialization studies have experienced major advancement in theory development and testing. This paper reviews the eight prevalent theoretical perspectives, as well as the major constructs examined in the last two decades’ organizational socialization literature. We also provide detailed guidance for future research at the end of the paper.