By analyzing different operating characteristics of Chinese and American sports agency industries, the authors concluded that American sports agency industry is rooted in different social backgrounds and sports institutional environments, having formed sports agency operating modes under different industrial environments, industrial norms under different legalization construction, and industrial qualities under different human resource systems. On such a basis, the authors pointed out that for the optimization of the sports agency system in China, China should follow such basic principles as "appropriate management", "respecting industrial modes" and "basing on talent cultivation as the foundation", carry out progressive marketization transformation, in the process of gradual perfection of legal and industrial norms, establish sports agency operating modes that are in conformity with socialist market economy, standardize sports agent qualification certification system, business management system, violation punishment system and such through governmental management and industrial autonomy, and establish a benign sports agent growth and supervision mechanism.