Emergency care of elderly patients is frequent and complex in the emergency department. Frail older patients have a high risk of poor short-term results following emergency care. There is no practical universal or standardized tool defining frailty. It must be systematically identified in older patients at risk using a screening test, and in those who are positive, a diagnostic scale of frailty or preferably a geriatric scale adapted to emergency care is carried out. An adapted geriatric assessment including brief scales related to clinical, mental, functional and social aspects has been proposed. There are currently no geriatric intervention models with sufficient evidence in frail older patients.