Most of the researches on physical dust formation centralized in the rainfall and flowing water's action before, and ignored the positive formation and acceleration action of wind power on it especially in the flown sand region. This paper analyzes the formational action of physical by wind power through constructing straw checkboard of different sizes in different morphological locations, at the same time analyzes the grain sizes in the straw checkboard and compares them with the counterparts in the flown sand region. Besides this paper also explains another mass source and acceleration action of physical crust of abundant atmospheric dustfall, and also does not overlook the important attribution of rainfall to the formation of physical crust in the flown sand region.