In the context of the “14th Five-Year Plan”, building a high-level public service system for national fitness and solving the problem of regional development imbalance have become the key issues in the study of mass sports in Chengdu-Chongqing Economic Circle. This study used literature, logical analysis, and questionnaire to explore the participation, practical value, practical difficulties, and optimisation path of Pickleball in Chengdu- Chongqing under the background of national fitness. The study concludes that the development of pickleball in Chengdu-Chongqing area faces three major practical difficulties: policy support and resource protection are in imbalance, resource allocation and development mode are weak and risky, and synergistic governance and smooth mechanism are out of step with each other. In order to address these dilemmas, we should strengthen the policy linkage to provide resource protection, optimise the allocation of resources to reduce market risks, and connect multiple subjects to construct a smooth mechanism, with a view to providing theoretical references for the promotion of pickleball and promoting the high-quality development of national fitness.