Young people are the future of the country and the hope of the nation. The physical health of adolescents plays a vital role in their growth. Regular sports participation can effectively improve the physical health of teenagers, while also helping to improve mental health and promote emotional regulation, thereby helping teenagers thrive and achieve the educational purpose of all-round development. The purpose of this study is to promote youth sports participation. Based on the ecological system theory, overlapping influence domain theory, and synergy theory, three environments, namely family, school, and community, which are closely related to the healthy growth of teenagers, are selected to analyze the impact of youth sports participation. factor. By summarizing the literature and expert guidance, 11 factors were identified at three levels that affect youth sports participation: the family level includes parental cognition, parental support, and parent involvement; the school level includes leadership support, teacher ability and cognition, campus facility funds, Physical health courses, campus sports atmosphere; community level includes organizational management, sports resources, publicity and education. This study adopted a random sampling method and selected 390 students from 10,242 students in 3 middle schools in Zhanjiang City as survey subjects. The researchers collected data through questionnaires that included participants' demographic profiles, sports participation, family factors, school factors, and community factors. Data were interpreted and analyzed using frequencies, percentages, weighted averages, Likert scales, Pearson correlation analysis, and linear regression analysis. Research shows that there are significant differences in youth sports participation by gender and grade. Boys' sports participation is better than that of girls. The sports participation status of junior middle school students is better than that of high school students. Among the effects of family factors on youth sports participation, "parental cognition", "parental support" and "parental participation" can all have a significant positive impact on youth sports participation. It shows that family entities can promote adolescents' sports participation behavior from three aspects: improving "parental awareness", focusing on "parental support", and focusing on "parental participation". In the impact of school factors on youth sports participation, in addition to "leadership support", the other four dimensions in the school factor scale are "teacher ability and cognition", "school facility funding", "physical education and health curriculum" and "school "Sports atmosphere" can significantly and positively affect youth sports participation, indicating that schools need to optimize hardware facilities, introduce outstanding sports talents, design sports and health courses, and create a good sports atmosphere in schools as the main ways to promote youth sports participation. Among the effects of community factors on youth sports participation, "sports resources" and "publicity and education" can both significantly and positively affect youth sports participation. However, "organizational management" cannot directly affect youth sports participation. Therefore, we can focus on absorbing and receiving more community sports resources, vigorously promoting sports-related information, creating a good sports atmosphere, and attracting more young people to participate in sports.