Windblown sand movement is responsible for aeolian landforms, deflation and soil erosion. The saltation movement is the main form of windblown sand movement, it accounted for about 75%, which is not only a major sport in windblown sand movement, but also the reason of erosion. The windblown sand movement in steady and it's characteristic were discussed in detail, in order to be play on anti-desertification. The results showed that the wind speed in the reptating layer varies little at the different frication velocities, the wind in the steady state is modified by the sand grains in the air, and the effective roughness increases with the increase of friction velocity; Simultaneously, saltation trajectory and impact velocity is bounded, the maximum saltation trajectory and the maximum impact velocity present in a given wind speed; And the maximum impact speed and the maximum saltation height and length of tracks has a linear relationship with the friction.