Abstract:Extraction technology of ginger polysaccharide by enzyme complex was made to acquire a higher ex－ traction rate and purity extraction rate of ginger polysaccharide. Extraction rate was used as an indication in the experiment， enzyme complex consists of cellulose， pectinase， papain and α-amylase. Single factor text and or－ thogonal experiment was used to get the optimal conditions. The optimal extraction conditions of ginger polysac－ charide were the cellulose added at 1.5 %， pectinasa added at 1 %， papain added at 2 %， α-amylase added at 2.5 %， the proportion of ginger to solution at 1 ∶ 25 （g/mL）， the pH in 5.2， the temperature at 55 ℃， the time was 60 min， and the extraction rate could reach 22.18 %，and the purity cloud reach 58.26 %.