Against the backdrop of accelerating global population aging, China faces multiple challenges in its traditional elderly care models, including uneven resource distribution and a shortage of professional personnel. This study analyzes international elderly care practices such as the UK’s community-based care, the US’s PACE model, and Singapore’s Central Provident Fund system, summarizing their institutional designs and operational features. Three key implications for China are proposed: strengthen the government’s leading role to promote equitable access to basic elderly care services; mobilize social forces to diversify service supply; and explore a “social-commercial insurance” mechanism to ensure the stable operation of long-term care insurance. The study aims to provide references for building a sustainable elderly care service system.