The invention discloses a method for acquiring the sand horizontal moving flux in the surface layer, and relates to the technical field of stratum sand monitoring. According to the method, the numberof the sand moving in the surface layer is measured in real time, fully automatically, and continuously by a Sensit piezoelectric wind erosion sensor, so that the total number of the sand moving in the surface layer in any sampling time period can be obtained. By establishing a linear relation between the sand horizontal moving flux in the surface layer and the total number of the sand moving in the surface layer in the same time period, and utilizing the linear relation and the total number of the sand moving in the surface layer in any sampling time period, the sand horizontal moving flux inthe surface layer of any measurement time step in a certain area can be rapid estimated. Therefore, the acquisition of the sand horizontal moving flux parameter in the surface layer of a certain areais more convenient and rapid. Compared with the acquisition method in the prior art, the labor cost can be greatly reduced; the sand horizontal moving flux data in the surface layer can be acquired in a higher frequency; and the requirement for scientific research or business application is met.