Abstract: Rice protein peptide has been widely concerned by researchers at home and abroad, because of its high nutritional value, high digestibility, hypoallergenicity and various physiological regulation functions. Based on the research progress of rice protein peptides in recent years, this paper reviews the preparation methods, separation and purification techniques and bitter taste improvement strategies of rice protein peptides. And summarizes the biological activities of rice protein peptides such as antioxidant, blood pressure lowering, immunomodulatory and hypoglycemic activities, introduces its application prospect in the field of food, and prospects the future research direction. The aim is to provide theoretical basis for the development and practical production of rice protein peptide.