As the fastest-growing multi-ethnic developing country in the world, my country's national constitution is closely related to individuals, families, countries, and nations. It is the basic condition of a nation's physical fitness. It is not only a component of social productive forces, but also an important foundation for comprehensive national strength, and an important symbol of the progress of civilization of a country and a nation. In 1995, my country successively promulgated the "Outline of the National Fitness Plan", the "Sports Law of the People's Republic of China" and the "Sunshine Sports" project, which played a role in promoting the comprehensive improvement of the quality of the people. In the process of implementing the national fitness plan, the multi-ethnic sports projects created by this project have laid a solid mass foundation for the extensive development of national fitness and the promotion of the development of national fitness. The application of the multi-ethnic sports events created by this project in national fitness is the first in China and is at the leading level in China. In the past five years, our team has explored and organized more than 40 multi-ethnic sports events; created and compiled 14 multi-ethnic sports events; promoted and applied them in national fitness in more than 10 provinces, municipalities and autonomous regions across the country, and achieved comprehensive innovative results: 1. Integration of multi-ethnic sports dance in national fitness: The team visited multi-ethnic areas many times and explored and organized nearly 20 multi-ethnic sports dances. At present, 8 national sports dances have been created, such as Maisirefu-Muqam, Eagle Dance, Spline Aerobics, etc. In ethnic minority provinces and regions, multi-ethnic sports dance has played a positive role in promoting national fitness and the development of square culture, and is a major topic for ethnic sports dance workers. 2. The application of traditional game events in multi-ethnic sports culture in national fitness: Through the team's exploration and practice, 12 ethnic sports games were excavated and sorted out, and 6 ethnic sports games were created. It has been successfully promoted and used in primary and secondary schools and colleges in nearly 10 provinces, cities and autonomous regions across the country. It especially plays a pivotal role in building campus sports culture, such as driving cattle into circles, hunting, etc., effectively solving the problem of rural ethnic minority areas. Expansion of mass fitness activities. 3. Promotion of multi-ethnic sports competition events in national fitness under the background of "Sunshine Sports": This team has explored and sorted out 18 ethnic sports competitive events, such as flying horses and silver picking, horse racing, stilt-walking racing, tug-of-war with wooden sticks, and Qelixi, etc., have been included in the competition events of the last two National People's Games, promoting the development of my country's multi-ethnic competitive sports events and laying a solid mass foundation for the implementation of the "Olympic Glory Plan." The multi-ethnic sports dance, sports games and competitive sports created by this project provide a strong guarantee for further promoting the sustainable development of national fitness and competitive sports in my country. The Olympic cheerleading team created in this event has won many awards across the country; it conducted comprehensive and multi-angle technical and tactical analysis for the Xinjiang wrestling team, and won 5 gold medals at the 11th National Games in one fell swoop; Focusing on this project, more than 10 national, provincial and ministerial topics have been applied for, 4 monographs have been published, more than 40 papers have been published, and more than 10 image materials have been published, providing scientific theoretical basis and reliable data reference for the implementation of the project. Experts from East China Normal University, Shanghai Jiao Tong University, Nanjing Normal University, Shandong Physical Education University and other domestic universities unanimously affirmed; Targeted promotion has been carried out in the national fitness campaign and square sports culture in more than 10 provinces, cities and autonomous regions across the country, vigorously promoting the sustainable development of my country's national fitness campaign. The multi-ethnic sports projects created and compiled by this research group have been vigorously promoted on campuses in Xinjiang Shihezi University, Xinjiang University, Xinjiang Normal University, Guangxi Normal University and other universities; they have been carried out in fitness cultural squares in Xinjiang, Guangxi, Yunnan and other regions and remote rural areas. Pilot promotion has been carried out and has been recognized by local fitness groups. The research results of this topic have been promoted, performed and competed on CCTV Sports Channel, Xinjiang Sports Channel, Guangxi TV, etc.; they have been specially performed and promoted at the opening ceremonies of the recent two National People's Games and large-scale celebrations of some universities across the country.