More than half of the world's population does not have enough physical activity; Therefore, the demand for effective programs in the field of sports and physical activity is increasing. This research was conducted with the aim of identifying and analyzing the drivers of public sports in South Khorasan province. It was of a mixed type that was conducted in two qualitative and quantitative stages. In the qualitative section, the purposeful sampling method was used to conduct in-depth interviews. After 14 interviews with specialists, university professors, officials and veterans of the General Sports Board and officials of the General Department of Sports and Youth of South Khorasan, the data was coded based on thematic analysis. In the quantitative part, 14 experts were selected based on judgmental sampling and the data were ranked using the fuzzy Dimetal technique. Using the theme analysis method showed 78 basic themes and 10 overarching themes. The overarching themes included demographic changes, social trends, growth of sports businesses, technological development, mass media marketing, public policy, scientific development of sports, physical development, changing values, and health considerations. In the quantitative part, the results showed that the change of values, the scientific development of sports and health considerations are more important than other identified themes, and public policy has the lowest priority among the other factors .it seems; Comprehensive programs by prioritizing cultural values and considering the improvement of scientific infrastructure and focusing on health considerations can improve the development of public sports at the national level