Sarcopenia is an age-related syndrome characterized by progressive and systemic loss of skeletal muscle mass and strength with age.Sarcopenia in the elderly not only leads to falls, fractures, disability, and reduced exercise ability, but also increases their risk of death and financial burden.At present, a number of professional organizations and institutions have published consensus on the assessment and diagnosis of sarcopenia, but the included parameters are not completely consistent.In this paper, the diagnostic criteria and related parameters of each consensus are reviewed.