The invention provides an efficient enzyme method for producing sodium gluconate, comprising the following steps: carrying out an enzymatic reaction by adding catalase and glucose oxidase into a reaction tank containing glucose as a raw material; adding glucose oxidase to maintain enzyme activity of glucose oxidase in the reaction solution at 2000U/ml-2500U/ml, and stopping the reaction when content of glucose is lower than 3g/L; and crystallizing, separating and drying obtain a sodium gluconate finished product. In comparison with enzyme addition amount in the prior art, enzyme addition amount in the method at least can be reduced by 10%.