In recent years， many studies have reported that the daily diet based on millet has the effects of lowering blood sugar and blood lipid. It is found that dietary fiber， protein and polyphenols in millet can improve the disorder of glucose and lipid metabolism， mainly by inhibiting the activity of related enzymes and regulating insulin signal transduction pathway， improve lipid metabolism by inhibiting the level of inflammatory factors and regulating the expression of related genes. In this paper， the functional components and related molecular mechanisms of millet and its components regulating glucose and lipid metabolism were reviewed， and the existing problems and directions of millet research were prospected. The review work is intended to provide some new ideas for promoting the basic research and industrialization development of millet.