Abstract:With the intensification of the global crisis of diabetes, resistant starch stands out in numerous dietary management measures for the prevention and treatment of type 2 diabetes mellitus（T2DM）. Based on its indigestible physiological characteristics, resistant starch can effectively adjust gene expression levels, optimize intestinal flora, reduce oxidative stress and inflammation, it highlights its advantages in the management of glucose and lipid metabolism, maintenance of intestinal function, control of high-risk factors, and provides a new choice for the management of patients with T2DM.