Abstract: The agency problem among club, athlete and broker in the transfer of players is one of the main problems of the transfer agent system of professional basketball players in China. Based on how to establish an effective transfer system of professional basketball players to better solve the principal-agent problem among club, athlete and broker. This paper, by means of literature review, expert interview and case analysis, studies the transfer agent system of professional basketball players in China through a mixed strategy game analysis of the agency problem of club, athlete and broker. The paper points out that the problems with the current system include: imperfect supervision system, lack of effective incentive mechanism and weak punishment mechanism. This paper puts forward such specific measures as pre-transfer incentive, post-transfer supervision and punishment to improve athletes' transfer agency system, in the hope of providing reference for the reform of athletes' transfer agency system.

Key words: professional basketball, transfer agent system, game analysis