In this paper， different mass concentrations of Auricularia cornea Ehrenb. polysaccharides were added to corn starch to prepare a corn starch-Auricularia cornea Ehrenb. polysaccharide compound system， and its retrogradation and digestion characteristics during storage were studied. The results showed that as the polysaccharide mass concentration increased， the hardness of the system decreased and the cohesion decreased， the To of the system gradually increased， and the enthalpy of retrogradation decreased. The higher mass concentration of Auricularia cornea Ehrenb. polysaccharide added， the more significant the texture and thermal characteristics of the system changed. The crystal nucleus of the recrystallization of the compound system mainly formed in the early stage of retrogradation. The nucleation method was rapid nucleation and rapid growth， Auricularia cornea Ehrenb. polysaccharides could accelerate the nucleation rate and recrystallization growth rate of the system. No new group was formed after the compounding system was regenerated. As the polysaccharide concentration increased， the hydrogen bonding force became stronger， and the degree of order gradually decreased. The addition of Auricularia cornea Ehrenb. polysaccharides maked the binding of water molecules in the system more tight， and the water retention of the gel was enhanced. The ratio of slowly digested starch in the compound system increased with the increase of polysaccharide mass concentration， and the content of resistant starch decreased. This study could provide important theoretical basis for better application of Auricularia cornea Ehrenb. polysaccharides to starch-based foods.