This paper reviews the development trend and prospect of sports nutrition market, as well as the research advance and functions of soy peptide, wheat peptide and collagen peptide in sports nutrition. The functions mainly include offering the required protein and essential amino-acid (EAA), relieving fatigue, repairing of exercise-induced muscle damage, promoting fat metabolism, elevating athletic ability and so on. The paper mainly describes the molecular weight distribution, essential amino acid composition and function of different peptides in sports performance which will provide some references and theoretical support for the application and development of sports nutrition products.