|（Department of Physical Education，Zhongkai University of Agriculture and Engineering，Guangzhou 510225，China)
Abstract: The authors analyzed the characteristics and choices of contracts offered by professional sports leagues from the perspective of enterprise contract theory, and therefore concluded that contracts offered by professional sports leagues are a pure contract type joint venture enterprise form formed via negotiation and bargaining. Profes-sional sports league administrators, club owners, athlete unions, government departments, sponsors, media, con-sumers etc, constitute the combination of contract relationships. The characteristics of such contracts are as follows: such contracts are the result of a series of transactions, also the result of contract choices; the core content of such contracts is the creation and distribution of game management quasi-rent.
Key words: sports industry；professional sports；sports league；contract theory