The activity of protease and amylase from four strains(j2,y2,42,x72) were compared with Aspergillus oryzae 3.042,and the changes with various salinity of 0%,5%,10%,15%,20% were measured.The activity of neutral protease decreased significantly(P<0.05) with the increase of salt concentration.The activity of acidic protease and glucoamylase were decreased drastically(P<0.05) under 5% salt concentration and followed by a gently decline.The activity of α-amylase at 5% salt concentration had no significant decrease(P>0.05) but followed by a steep drop.Besides,the amylase was much more stable than the protease in the same sodium chloride solution,and the residual activities of α-amylase and glucoamylase were up to 50% in five strains under 20% salt concentration.The decline rate of neutral protease from strain y2,j2 and acidic protease from strain x72 were all lower than those from control group.