Sarcopenia causes significant changes inskeletal muscle mass and function in the elderly, and leads to an increased incidence of related diseases, which has affected the quality of life in the elderly.The causes and mechanisms of sarcopenia are closely related to genetic and innate factors, endocrine disorders, reduced number of muscle fibers, nutritional deficiency, inflammation, immune dysfunction and other factors.This paper systematically describes the progress of studying the effects of intestinal microecology on sarcopenia, so as to provide potential targets for the prevention and treatment of sarcopenia.