This study outlined the mechanisms and clinical manifestations of diabetic foot. We summarized methods for early assessment and monitoring of diabetic foot in community-dwelling older adults, including community-based early assessment and screening, and foot self-monitoring.The assessment mainly included self-management tool assessment, foot self-observation, plantar pressure self-measurement, foot temperature self-measurement, and foot image monitoring. We described diabetic foot care interventions for homebound older adults in the community. The contents of interventions included disease knowledge instruction, foot self-care, wound care and lower extremity exercise training. The forms of interventions included hierarchical linked continuity of care, and "Internet〖HT6SS〗 +" 〖HT〗〖WT5"BZ〗 nursing care. It is proposed that emphasis should be placed on the monitoring and intervention of diabetic foot in the community homebound elderly, so that elderly patients with diabetic foot can receive early, timely and effective management in the home environment.