The successful convening of the Party’s 20th National Congress marks a new journey for the cause of socialism with Chinese characteristics, and we have officially entered a new period of socialist development. This new period is full of infinite hopes and opportunities, and has laid a solid foundation for our country’s future development. “To achieve high-quality development is the essential requirement of Chinese-style modernization and the primary task of building a modern socialist country in an all-round way”, the report of the 20th National Congress put forward. Young people carry the future of the country and the hope of the nation, at the same time, they are also the core driving force to promote high-quality development in the field of sports, and is the only way to a higher level of development. As China enters a new period of socialist development, the high-quality development of youth sports is not only related to the physical and mental health and all-round development of young people, but also an important basis for realizing the dream of sports power. Starting from the three dimensions of theoretical logic, historical logic and realistic logic, this paper will deeply explore the connotation and characteristics of high-quality development of Chinese youth sports in the new period of social development. Understand the realistic dilemma of high quality development of youth sports: Lack of awareness of sports value; School physical education links are not enough to help; It is difficult for relevant departments to break through action barriers; Then it puts forward the necessary measures for the high quality development of youth sports: Strengthening the multi-sport activities and competition system; Increase infrastructure construction and resource sharing; Clear policy guidance and le gal protection.