The effects of stubble application and slope gradient on soil and water loss are studied. The 15 cm stubble mulch application can reduce runoff amount by 18.6>.Stubble application can reduce sediment yield by 14.36>-19.47>.Crop stubble application with a height of 5,10，and 15 cm and slope gradient has no significant effects on initial runoff time. The 150 slope steepness has a significant effect on soil erosion. The 15 cm stubble mulch application has the most significant effect on soil and water conservation.