The invention discloses a method for producing D-lactic acid by splitting racemized lactic acid by adopting an enzyme method, comprising steps of: (1) preparation of an intact cell suspension or a crude enzyme liquid containing NAD independent lactic acid dehydrogenase, (2) inactivating the NAD independent D-lactic acid dehydrogenase by a thermal denaturation method, (3) splitting the racemized lactic acid, (4) preprocessing of transformation liquid, (5) separation of D-lactic acid and pyruvic acid, (6) refining the D-lactic acid and the pyruvic acid, etc. The method has advantages of simple culture medium, short growth cycle, low cost, low expenses of the follow-up separation and extraction, high substrate concentration resistance and high enantiomeric excess value of the product D-lactic acid, and lays the foundation for the development and application of low-priced racemized lactic acid and the high-efficient production of D-lactic acid.