Abstract: Interdisciplinary integration acts the catalyst to promote the high-quality development of disciplines; digital sport science is a new discipline type formed by the combination of digital science and sport science. By using the methods of literature review, comparative analysis and logical reasoning, the necessity, foundation, basic orientation and framework of digital sport science are discussed. It is held that digital sport science is unavoidable not only to promote the benign, coordinated and sustainable development of digital sport, but to improve the discipline system, academic system and discourse system of sport science. Therefore, it will definitely cultivate high-quality, specialized and compound sports talents in the new era, which so far has a solid policy basis, as well as the technical, theoretical and practical basis. Digital sport science is the cross-research field in which digital technology and sport science theory are deeply integrated, and it has its own research object and research category. While its discipline nature belongs to the research of strategic technology R & D with the emphasis on "mission-oriented" and "application-oriented", its frame system is mainly composed of theory system, discipline system, methodology system and value system.