China is experiencing rapid population ageing, with the imbalance between supply and demand for elderly care services becoming increasingly apparent. Based on field research in Y Community of Meitan County, Zun Yi City, Guizhou Province, this paper proposes an innovative day care model for older adults emerging in less developed regions-the Leisure Community. It is an informal day care model grounded in local cultural practices and neighborhood social interactions, utilizing daily leisure activities as medium while providing both emotional comfort and caregiving functions. The paper employs diverse theories to examine the formation mechanism and long-term operational logic of this model. The findings reveal that the formation of Leisure Community relies on five key mechanisms: social capital accumulation, emotional mutual nurturing, spatial embedding, health maintenance, and cultural driving forces. Its long-term sustainable operation is ensured by the cyclical reproduction of social capital, place innovation and cost control, autonomous operation and self-worth, as well as spatio-temporal reconstruction and intergenerational win-win. Finally, this paper clarifies the functional positioning and operational boundaries of Leisure Community, and puts forward the implications of this model for exploring more diversified local cultural elderly care practices.