Abstract: Based on a review of relevant literature, the present paper examines the unity of opposites in sports subjectivity and the philosophical relationship between sports and the existence of human as the subject according to the dialectical thinking of Marxist practical materialism. In the inner quality of sports, the rights and responsibilities of the sports subject are the value of human life, which derives from human's natural ability. The practice and meaning of sport is to slow down the physical degradation, to keep physical health, and to save the body of the practice of the wild.The unity of opposites is showed completely in sports, and in sports subjectivity, the contradiction between nature and society, nature and society, individuality and mass, internal and external, activity and passivity, competition and cooperation, violence and rule may appear at any time. Sports enable life to survive as a"complete person", and the nature of human is confirmed through exercises. Sport is the practical form of human freedom and all-round development.

Key words: Subjectivity, Sports, Human, Contradiction, Dialectics, Significance