Pea peptides are small molecule oligopeptides with a relative molecular weight of 200 to 800 Dalton, which are produced from pea protein through enzymatic hydrolysis, separation, refining and drying. Amino acids are essential nutrients for the human body, but there are 8 kinds of amino acids that the human body cannot synthesize by itself and need to be taken in from the outside. Except for methionine, the content of these eight amino acids in pea peptide is slightly lower, and the proportions of the remaining amino acids are close to the FAO/WHO recommended model.