In order to reveal the variation regularity of runoff and sediment yield by rill erosion in the main soil types of cinnamon soil and brown soil sloping land in Western Liaoning, and to provide a theoretical basis for the prediction of soil erosion in this area, two soils were analyzed under the conditions with slope of 10° and 15° and rainfall intensities of 40, 60 and 80 mm/h by using artificial simulated rainfall system. The results showed that the runoff of cinnamon soil increased with the increase of rainfall intensities, and the maximum value appeared in the process of rainfall with rainfall intensity of 80 mm/h at the slope of 15°. On the contrary, the sediment content decreased with the increase of rainfall intensities. When the slope was 15°, the runoff of cinnamon soil decreased with the increase of rainfall intensities. At the end of rainfall, the three rainfall intensities were all concentrated at 0.05 g/mL; the runoff and sediment contents in brown soils at 10° and 15° had no obvious law; the relationship between the total runoff and sediment of the two soils showed that the total runoff of cinnamon soils was larger than that of brown soils, while the total erosion was smaller than the latter, indicating that brown soils were more prone to rill erosion.