Based on empirical data from 21 prefectures in Sichuan Province,this study employs the entropy weight method to calculate the urban-rural integration index of elderly care services at both provincial and prefectural levels.The coupling coordination method, kernel density estimation,and QAP method are applied to evaluate the degree,trends, and mechanisms of urban-rural integration in elderly care services.The results indicate that the urban-rural integration index of elderly care services in Sichuan has improved significantly,with the Chengdu Plain and Northeast Sichuan exhibiting outstanding performance.However,the convergence trend among prefectures remains at risk of deterioration.Regarding systemic coordination,the overall degree of coordination for urban-rural integration in elderly care services has continued to improve.While the inclusive growth subsystem demonstrates strong coordination with both the collaborative governance and fiscal support subsystems, coordination between the latter two subsystems remains relatively low.Mechanistic analysis reveals that high-coordination regions are driven by three-dimensional factors - top-down support,fiscal coordination,and government leadership-whereas low-coordination regions are constrained by institutional environments and limited service capabilities.