Abstract
The frailty of older adults with heart failure and its correlation with self-care maintenance is a complex and multidimensional phenomenon. Frailty not only directly influenced self-care maintenance in participants but also indirectly affected it through the mediating factors of social support and depression. Future research should emphasize innovative, targeted interventions to enhance social support quality and accessibility and alleviate depression, ultimately boosting patients' self-care capabilities and elevating their quality of life.