Abstract: The test was carried out on the real surfaces by means of the movable wind tunnel in order to evaluate quantatively the anti-erosion effect of different surfaces' soil in arid and semi-arid regions in north areas of Yinshan Mountain. The result shows that the erosion modules of degenerated grassland and traditional tillage farmland are much more than those of non-degenerated grassland and conservation tillage farmland when wind velocity is constant. Their wind erosion modules vary gently with wind velocity changing and there is not critical point of wind erosion modules. The anti-erosion efficiencies of non-degenerated grassland and conservation tillage farmland can reach 85.1 percent and 90.8 percent when the wind speed reaches 8 m/s .They have obvious anti-wind erosion capabilities to 8 level wind or so.