Frailty is a clinical condition characterized by individual dependence and/or increased mortality dur-ing periods of stress,which can result in adverse outcomes such as disability,dementia,falls and death.It represents a contemporary geriatric syndrome that involves dynamic processes with individuals transitioning between different states.Body composition,including muscle mass,fat distribution,and water content,undergoes dynamic changes in response to the occurrence and progression of diseases.This article provides an overview of body composition characteristics observed in frail elderly individuals,such as reduced muscle mass,elevated visceral fat mass,and decreased phase angle.Addi-tionally,it highlights the role of body composition analysis in identifying and managing frailty.The article suggests that analyzing body composition allows for evaluating the relationship between body composition indices and overall health status or clinical manifestations among older adults.Comprehensive interventions like adjusting nutrient intake and hy-dration levels while increasing physical activity and improving lifestyle choices may potentially reverse certain aspects of frailty state,thereby enhancing quality of life for older adults while reducing unnecessary medical costs.