With the development of economy and the progress of times, people pay more attention to the development of sports, and the influence of coaches in people's life is more important, especially the youth sports. In China, coaches play an important role in youth sports. The development and progress of coaches has a direct impact on youth sports. General Secretary Xi pointed out that "A strong youth makes China strong, and sport makes China strong. Promoting the continuous development of China's sports is an important part of the great rejuvenation of the Chinese nation". By strengthening the implementation of the "Healthy China 2030", we will comprehensively improve the governance capacity of China's youth sports, and lead the development of youth sports by "Strong youth means strong China, strong sport means strong China" [1]. This study will be in the policy background of health of Chinese strategy, in order to "people-oriented" concept of sports development, using the literature material method, interview method, from the developed countries the development status of coaches and training requirements, coaches should be put forward from three dimensions, physical dimension, psychological dimension and spiritual dimension, to care for athletes, to help athletes to understand the meaning of life, to put forward to build and improve the professional quality and ability of the coaches in youth sports system to provide the reference.