Enzymatic hydrolysis technology of defatted honeybee pupae is studied. The degree of hydrolysis (DH) and the yield of polypeptide are taken as evaluation index, neutral and alkaline protease are selected out to be further studied from neutral protease alkaline protease, papain, bromelain and flavor enzyme. On the basis of single factor and response surface experiments, the optimum enzymatic condition is obtained: the mass ratio of complex enzyme 1 : 1 (g/g), enzyme amount 4.67%, pH 8.27, the ratio of material and solvent 1 : 12 (g/mL),...