Abstract:Starting from the study and implementation of the spirit of the 20th Central Committee of the Communist Party of China (CPC) Third Plenary Session, this paper delves into the connotation, characteristics, and practical pathways of the regional coordinated development strategy mechanism, aiming to promote Chinese-style modernization through high-level regional coordination.First, it reviews the formation and evolution of the regional coordinated development strategy, analyzing its policy innovations and practical paths at different stages. It systematically elaborates on the core content of the regional coordinated development strategy mechanism, emphasizing that building a complementary regional economic layout and improving market, cooperation, and mutual assistance mechanisms are key guarantees for achieving regional coordinated development. Secondly, it explores the value connotation of the strategy, pointing out the significant importance of promoting the efficient flow of production factors between regions, optimizing regional division of labor and development, and improving the overall national economic efficiency and development quality. Finally, from the perspective of practical pathways, it proposes strengthening national top-level design and policy guidance, constructing a unified and open market environment, optimizing regional spatial layout and functional positioning, promoting the coordinated development of urban agglomerations and metropolitan areas, deepening regional cooperation and mutual assistance mechanisms, and innovating regional development policies and support mechanisms, in order to provide theoretical support and practical insights for regional coordinated development and Chinese-style modernization in the new era.