Abstract: The basic problem of sport science is to determine and clarify the basic content of sport science, including sports object, purpose for sport, content for sport, means for sport, sports connotation and so on.At present, there are still doubts and divergences concerning the concepts of the basic content of sport science, such as the unclear object and purpose of sport, the dislocation of the content and means of sport, etc. Reflecting the basic content of sport science and discussing the essential characteristics and new connotation is essential to reveal the law of sport and solve the practical problems, which is helpful to promote the independence and maturity of sport science.The research holds that the object of sport is the movement of human beings rather than the human beings themselves.Its basis is to promote the development of human beings and the goal is to improve and display the level of sports performance.Its specific form should be the content of sports while its means should be the various methods and ways to improve and show the level of sports.Sport manifests its own significance in consciously realizing the value in sports as well as the value-added of sports, confirming and demonstrating the essential power of humans in the process of "the movement of human's essential power".