This chapter explores the market participation model as an innovative response to the challenges facing rural mutual aid elderly care in China. It analyzes how market forces—driven by economic development, government support, the growth of diverse actors, and the nurturing of a robust market environment—enhance resource allocation, diversify services, and professionalize care for rural seniors. The chapter highlights how private enterprises, non-profits, and social enterprises provide financial investment, talent, technology, and innovative management, driving service improvements and expanding access. Through empirical cases, it examines mechanisms such as platform construction, project implementation, and service innovation, showcasing how market integration boosts infrastructure, healthcare, and education for the elderly. By fostering collaboration between government, market, and society, the model advances the quality, sustainability, and inclusivity of rural eldercare, offering both theoretical insights and practical references for the future development of China’s elderly care system and global rural aging governance.