Abstract: liquid glucose was produced with raw starch by means of enzymatic liquefication,and a process of ion exchange-acidation-saccharification.It was showed the new technology can produce glucose with high quality than traditional technology of enzyme-acid method,and had some advantage,such as filterability,high productivity， better efficiency compared with double-enzyme method.

Key words: Raw starch liquid glucose Enzyme-acidmethod Ion exchange-acidation-Saccharification process