Sarcopenia is a progressive skeletal muscle disease characterized by a decline in muscle strength quantity quality and function. It is commonly observed in elderly individuals cancer patients and those with chronic diseases. Sarcopenia significantly increases the risk of falls surgical complications and mortality rates among high-risk populations imposing a substantial burden on both healthcare systems and society. However there is currently no unified screening and diagnostic criteria for sarcopenia and there is a lack of systematic and individualized diagnostic criteria and standardized treatment measures suitable for the Chinese population. This article aims to summarize published research and guidelines related to sarcopenia to establish standardized screening criteria diagnostic and treatment processes and systems with Chinese characteristics. These can be applied in healthcare institutions at all levels in China for screening assessment diagnosis treatment and monitoring of sarcopenia providing a reference for clinical practitioners and researchers.