Abstract:Potato is rich in starch.Starch forms a good water-based and transparent gel with oily features，and is widely used in the preparation of cakes，sausages，sugar products，and traditional foods.The digestion and absorption rates of potato starch significantly affect the human blood glucose index and has been extensively studied.With the goal of the better use of potato starch，this paper summarized the digestion and absorption processes and the increasing resistance of potato starch.The applications of potato starch were also developed.