The sandstorm erosion environmental characteristics of the central and western regions of Inner Mongolia were analyzed. Through the measurement of the thickness, density, hardness, elastic modulus, flexibility of the steel structure coating, adhesion grade indicators of the coating and substrate, the anti erosion mechanical properties of the steel structure coating material were investigated and the erosion influence of different sandstorm environment characteristic parameters to the coating were studied. As the hardness and elastic modulus of the steel structure coating are small, the flexibility of the steel structure coating is large, adhesion of the coating and the substrate is of the high level, it is shown that in the erosion process, the erosion mass loss of the coating increases with the erosion speed increasing, it also increases with erosion sand dose increasing, the erosion mass loss of the coating is greater at low angle erosion than at high angle erosion.