Rice protein is a high-quality vegetable protein that rivals fish, shrimp and beef. More importantly, rice protein is hypoallergenic and can be used in infant formula. But the protein in rice protein is mainly gluten, which can only be dissolved in alkaline solution, thus limiting its application. Compared with rice protein, rice peptides not only have the above advantages, but also have good solubility, acid, thermal stability, low viscosity and other physical and chemical properties that rice protein does not have, and have easy absorption, blood pressure lowering, anti-oxidation, etc.