Abstract: Based on the connotation and characteristics of aging-adaptation in sports public services under the delayed retirement policy, this study examines the endogenous logic of such adaptation through empirical analysis. The findings reveal that the endogenous logic of aging-adaptation in sports public services under this policy includes: aligning with proactive health concepts to improve physical and mental well-being; fostering social participation to build emotional communities; and responding to mainstream consumption upgrades to meet diverse demands. However, challenges persist, such as inadequate institutional design, insufficient awareness of proactive health and sports behavior, unmet demand capacities, and underdeveloped products and services. To advance the high-quality development of aging-adaptation in sports public services under the delayed retirement policy, this study proposes innovative pathways: improving institutional design systems to enhance integrated planning; strengthening proactive health awareness to deepen the integration of health cognition and sports behavior; activating demand across diverse populations to elevate service capacities; and integrating multi-supply forces to expand comprehensive provision.