Taking peanut and hedgerows cropping patterns as research objects with peanut conventional cultivation as a control, the effects of Vetiveria zizanioides hedgerows on 0-20 cm soil enyme activities were tested in critical growth duration of peanut in red-soil sloping land. Results showed that: Vetiveria zizanioides hedgerows obviously increased the activities of soil urease, sucarse and catalase compared with traditional cultivation. Moreover, soil enzyme activities tended to accumulate above the plant hedgerows and to be eroded downward below the hedgerows along contour lines across the field. With the peanut growth and development, the activities of soil urease, sucarse and catalase increased firstly, and then decreased, exhibiting the highest at the podding stage. The correlation coefficient between sampling point and urease and sucarse, and the correlation coefficient among the soil enzymatic activities reached significant level.