Based on the daily precipitation and runoff sediment yield data in 2016 and 2017 under different slope land measures (slope farmland and changing slope to terrace) in the test station, the law characteristics of runoff sediment yield under different slope land measures and rainfall intensities were studied. The impact of changing slope to terrace and slope farmland on runoff and sediment was quantitatively revealed. The results showed that: (1) In July, the average rainfall intensity I, the maximum rainfall intensity I₃₀ and the slope land runoff were the largest, and in August, the maximum rainfall intensity I₆₀ and the slope land sediment yield were the largest, indicating that the peak of runoff and sediment was the same as the peak of rainfall intensities. (2) The correlations between runoff and sediment yield in spring and summer and I, I₃₀ and I₆₀ were significant (more than 95% confidence test). The correlation coefficients in slope land were higher than those in changing slope to terrace land. In spring and summer, the sediment yields in slope land were 3.91 and 7.85 times of those in changing slope to terrace land. (3) The rainfall was mainly concentrated in I: 1~3 mm/h, I₃₀: 3~29 mm/h, I₆₀: 2~27 mm/h, and the runoff and sediment yield in slope land was positively correlated with the maximum rainfall intensity I₃₀ and I₆₀ at 95% confidence level. When I₃₀ reached 29.0 mm/h, I₆₀ reached 26.6 mm/h, the runoff and sediment yield in slope land reached the maximum. The peak values of runoff and sediment yield in slope land were 2.43, 7.52 times higher than those in changing slope to terrace land. The variation coefficients of runoff and sediment yield in the whole year were higher than those in changing slope to terrace land. Thus, changing slope land to terrace could prevent soil erosion to a certain extent, and reduce the variation of runoff and sediment yield.