Abstract: Sports competition system is a social system, so its justice is also considered as a social justice. The paper quotes Rawls’ s social distributive justice theory to analyze the justice process in sports competitions. Rawls’s theory illustrates two justice principles - freedom of equality principle and difference principle. Sports competition system is different from social distribution system. It is a typical game or the game system with the preferences to risks. Sports competition system must emphasize competitive excellence with pursuing and achieving excellence as the primary goal of sports justice. The embodiment of this kind of justice in the differences principle is the "maximized" rules with the its service principle as "excellence". This paper reveals that sport is a kind of technical justice with quantifiable features. Based on the above, this paper attempts to clarify that Rawls's theory of justice can only serve as the general justice principle of social system, and does not apply to special social system.

Key words: sports competition system justice, Rawls, Distribution justice, sports competition rules