Rice hull powder is mainly produced by processing the pericarp, seed coat, outer endosperm, aleurone layer and embryo. The research results and data indicate that rice hull is rich in various nutrients and physiological active substances. Due to the differences in the raw materials used and the processing techniques adopted for processing rice hull, the composition of rice hull is not exactly the same. Generally speaking, rice full contains an average of 15% protein, 16%-22% fat, 3%-8% sugar, 10% water, and approximately 125.1 KJ of calories per gram. The main fatty acids in the fat are mostly unsaturated fatty acids such as oleic acid and linoleic acid, and it also contains high amounts of vitamins, phytosterols, dietary fibers, amino acids and minerals.