Abstract: National fitness service innovation is an important path to build higher level of national fitness service system and plays a key role in meeting people's exercise need for better life. The research takes national fitness service innovation as the core content to analyze the scientific connotation, basic principle and value implication of national fitness service innovation, aiming to provide both theory support and practice guide for the development of national fitness service innovation. The results show that the scientific connotation of national fitness service innovation emphasizes the coordination of service subjects, the transformation of service content, the optimization of service methods, the upgrading of service means, and the improvement of the service system so as to improve service quality and service satisfaction through diversified innovation. The basic principles for promoting the innovative development of national fitness services include adhering to the unity of the CPC's leadership and people-first principle, the unity of problem-oriented operation and goal-oriented operation, the unity of top-level design and pilot exploration, the unity of overall promotion and key breakthroughs, the unity of continuation and keeping pace with the times so as to ensure the implementation of service measures. The value implication lies in the fact that national fitness service innovation is an important means to safeguard people's sports rights, an important support to promote common prosperity, an important carrier to cement the sense of Chinese national community, an important foundation to support and serve the national development strategy, and an important force to create a better future for mankind.

Key words: national fitness service, public sports service, leading sports nation, the Healthy China strategy