The present invention discloses a rice aging inhibition method by adding trehalose and vacuum packaging. A certain concentration of trehalose is uniformly sprayed on rice, so that the trehalose is fully contacted with proteins, starch and other substances in the rice. The trehalose is used to form a glass body structure with a similar form of crystal, so that the biomolecules can be maintained at a certain spatial structure, thereby denaturation of proteins is prevented, lipid rancidity is inhibited, smell is corrected, etc., and the rice aging during a storage can be effectively inhibited. Rice vacuum packaging can isolate rice and oxygen, so that microorganisms in the rice cannot grow, nutrients are not easy to be oxidized, and the rice aging is inhibited. In a storage environment, common rice can be preserved for 12 months. After the stored rice using the two methods of adding trehalose and vacuum packaging is stored for 18 months, a RVA peak value viscosity of the stored rice reaches 3468 cP and is higher than that of common rice; RVA final viscosity of the stored rice reaches 3822 cP and is lower than that of common rice; and a free fatty acid content of the stored rice is 13 mgKOH/100g and is less than that of common rice, so that the storage period reaches 18 months.