In order to increase crop yield,farmers usually improved soil texture by mixing soil with sand in the Chinese mollisol region. This study was conducted to analyze impacts of different proportions of soil mixed with sand (0,10%,20% and 30%) on slope erosion under three slope gradients (3°,5ånd 7°) based on simulated rainfall experiments. The results would provide scientific foundation for agricultural production and soil erosion control in this region. The results showed that the impacts of different proportions of soil and sand mixture on runoff were greater than those of slope gradients,which increased with the increase in slope gradient. As the proportion of sand mixed in the soil increased,the mean runoff velocities varied from 5.2~5.3 cm/s to 2.7~3.4 cm/s and runoff rates and total runoff also decreased with the minimum values occurred in the 30% treatments. Sediment rates first increased and then decreased with the increasing proportion of sand mixed in the soil and slope gradient. Similar trend was found in sediment yields and the 10% and 20% treatments had the greater values than others. It could be include that soil mixed with sand less than 20% could decrease the runoff but increase soil erosion. Therefore,the effects of soil mixed with sand cannot provide a comprise solution for preventing soil loss in Chinese mollisol region. However,a moderate proportion of sand mixed in the soil can be used as an altenative agriculture technical measure by considering its ecological and economic benefits.