Abstract: Cultivating new quality productive forces in the sports industry is the inherent requirement and the focal point for promoting the high-quality development of the sports industry. In recent years, the demand for the sports industry has gradually increased with economic development. However, the misalignment between supply and demand has put forward new requirements for the supply-side structural reform of the industry. Developing new quality productive forces has become an important means for the sports industry to achieve a high-level dynamic equilibrium. Based on the theory of political economy and from the perspective of supply-side structural reform, this paper analyzes the industry characteristics and development status of the sports industry and puts forward the requirements for the development of new quality productive forces in the sports industry, that is, to develop new quality productive forces in the sports industry with optimized allocation, adaptation to local conditions, strong development resilience, broad space for integrated development, and strong incentive for model innovation. On this basis, further research is conducted on the path to promote the development of new quality productive forces in the sports industry. Policy suggestions, such as deepening supply-side structural reform, clarifying the boundary between government and market, giving full play to the decisive role of the market in resource allocation, and strengthening the inclusiveness of institutional mechanisms to support sports industry model innovations, are put forward, which will promote the efficient and sustainable development of new quality productive forces in the sports industry.