Work-related identity transition (WIT) refers to the process or outcome regarding the loss of old work-related identity and regain of new work-related identity. In a boundaryless career environment, WIT is more common than ever, active or passive, macroscopic or microcosmic, and its important effects on socialization of organizations which are composed of individuals and career transition highlight its research values. This paper comprehensively sorts out domestic and foreign literature about the processes, essence, influencing factors and forms of WIT, and comes to the conclusions as follows：firstly, WIT equals the transition process of self cognition, emotion and behavior related to work role and value ideas; secondly, the essence of WIT involves in work identity play, negotiation & recognition, work relation transition, work identity rebalance and cognition transition & emotion repair, and the main way of WIT is self narrative; thirdly, WIT is affected by not only individual factors, but also work & organization factors. Future research should focus on the outcomes of WIT, localization and diversification of research methods.