Method for producing glycyrrhizic acid through enzymolysis

The invention provides a method for producing glycyrrhizic acid through enzymolysis. The method comprises the steps of carrying out enzymolysis on glycyrrhiza uralensis by utilizing complex enzyme, extracting glycyrrhizic acid with 10 percent volume of alcohol, separating and purification with macroporous adsorption resin, and eluting with 10 percent volume alcohol as eluent, thus obtaining glycyrrhizic acid, wherein the complex enzyme is of a mixture of pectinase, cellulose, xylanase and beta-glucanase. The extraction method has the advantages of low cost, simplicity and convenience in operation, environment friendliness, high yield and purity, and suitability for industrial production.