Advances in medicine have led to an increase in human longevity,a year-on-year increase in the number of elderly people,and a gradual acceleration of the aging process.The physical functions of the elderly are gradually decli-ning and their ability to cope with stress is decreasing.Therefore,the social medical burden required for old-age care is increasing.Frailty is a common geriatric syndrome,which is mainly characterized by the decline of the body's physiologi-cal reserve capacity and can lead to a variety of adverse outcomes,seriously affecting the quality of life of the elderly.With the rapid development of general medicine,primary healthcare organizations have gradually become the main battle field for elderly patients to enjoy health services,and the elderly are regarded as the key population to be managed by pri-mary healthcare organizations.Early identification and timely intervention by general practitioners to actively improve the functional status of the elderly will reduce the occurrence of adverse events such as falls,infections,hospitalization,and even death as a result.As the mechanism of the occurrence and development of frailty is not yet clear and the related re-search is limited,the identification and prediction of frailty can often rely on frailty assessment tools to realize,so it is ex-tremely important to choose the appropriate frailty assessment tools.At present,the research on frailty assessment tools in foreign countries is earlier and more comprehensive,while in China,the research on frailty assessment tools in primary care is in its initial stage,and a recognized unified"gold standard"for frailty assessment tools has not yet been formed.Therefore,this paper reviews the existing domestic and international literature on the application of frailty assessment tools in primary care,analyzes the characteristics and application scenarios of various types of frailty assessment tools,and aims to give full play to the advantages of primary care physicians as the gatekeepers of residents'health,slow down the development of frailty,promote healthy aging,improve the quality of life of the elderly,reduce the burden of medical care,and achieve the goal of Healthy China by providing reference and basis.