Abstract: In order to explore the effect of reed cutting on soil enzyme activities after a certain number of years,the field control experiments were adopted to determinate the activities of soil enzymes (including urease, catalase, alkaline phosphatase and invertase) taking reed community of artificial restoration in Taihu Lake National Tourism Resort, Suzhou City, as the object. The results indicated that: soil invertase activity was the most sensitive under the reed cutting,followed by alkaline phosphatase. Further, it did not exist significantly in urease and catalase activity of two treatments. Soil chemical proporties were no significant differences except available phosphorus in two treatments. The correlation analysis showed that: it was a very positive correlation significantly among soil urease, alkaline phosphatase and invertase activity and organic matter, and the total nitrogen and phosphorus. It was indicated that the changes of soil nutrients due to reed cutting were the principal reason to soil enzyme activities.