In order to assess extents of the influences of soil properties on enzyme activities the relations between activities of urease, invertase and phosphatase and soil properties were studied through path analysis of twelve soil samples of the five major soil types in Zhejiang Province. The results showed that soil organic matter, total nitrogen, and total phosphorus were the major factors influencing activities of urease, invertase and phosphatase, while CEC had the least influence on them. With respect to direct effect in the path analysis, pH value most significantly influenced activities of urease and activities of invertase and phosphatase as well. But the direct effects of pH on the urease, invertase and acid phosphatase were to a large extent counteracted by the indirect effects of other factors on them. Silt also significantly influenced the activities of invertase, whereas clay and sand had certain influence on acid phosphatase and urease, respectively, but mostly in the form of direct effect.