With the continuous improvement of the socialist market economic system and the rapid development of the tertiary industry, as well as the continuous improvement of the social service system, some state-owned large and medium-sized enterprises in order to better fulfill their main functions, is gradually separated from the logistics functions, relying on Social office logistics. Logistic Socialization In terms of economics, it is a problem of specialization and social division of labor. Therefore, there must be a principal-agent relationship, and the game between the different actors in the process of strategy selection. Based on the basic principles of information economics and game theory, this paper constructs the game model between principal and agent behavior in the reform of logistics support socialization of state - owned large and medium - sized enterprises.