Wind erosion is one of main reason to caused soil degeneration in arid and semiarid region. The intensity of wind erosion is decided by local environment and soil characteristic. With increasing of human being activity intensity. Land using, land cover and soil surface humidity changing are became main factors to influence soil erosion. In this paper, the measured data of soil surface humidity and its erosion quantity are analyzed in Fengning Country of Hebei Province from March to June 2002. Soil humidity which influencing soil erosion are studied and then compared according to the way of different land using. The result show: The main factors to influence soil erosion are the way of different land using and soil humidity. Grassland and woodland are bigger than infield in anti-wind-erosion process. Soil surface humidity is take important part in the process of wind erosion in infield. According which the way of land using adjusted and then to increased soil surface humidity in spring. Wind erosion will be reduced in this region.