[Objective] To study the optimal ratio of enzyme complex formulation.[Method]1 200 kGy~(60)Co γ-ray irradiation corn straw as raw material,the response surface methodology was applied for analyzing the cellobiohydrolase,the endoglucanase,the β-glucanase and the xylanase.[Result]The reducing sugar content was extremely significantly by xylanase dosage but not significantly impacted by cellobiohydrolase,β-glucanase and endoglucanase. The optimum conditions for supplemental levels were found to be hydrolysis a...