Abstract: Building sports into a landmark cause of the great rejuvenation of the Chinese nation is the direction of the times for the construction of a modern leading sports nation. By using the research methods of literature, case analysis, logical deduction and comparative analysis, this paper attempts to understand from the historical dimension, theoretical dimension, world dimension and realistic dimension the overall connotation and direction of sports as a landmark cause of the great rejuvenation of the Chinese nation. The research holds that in the course of pursuing modernization and development, Chinese sports always revolves around the historical mission of promoting the great rejuvenation of the Chinese nation. It has realized the transformation from external intervention to dynamic endogenesis, from passive response to active progress, from foreign experience to local innovation, and from focusing on key areas to all-round development. From the theoretical dimension, Chinese modern sports stresses the unity between top-level design and practical exploration, the coordination between development strategies and specific strategies, the connection between integrity and continuous innovation, and the conservation between stimulating vitality and abiding by order. From the world dimension, Chinese sports cause has made an important contribution to the global advancement of modern sports through its unique institutional advantages, excellent cultural genes and typical development examples; from the realistic dimension, the development track of sports along the new road of Chinese-style modernization needs to be adjusted and improved with the new stage, new characteristics and new requirements of the Chinese-style modernization practice.