The role of asphalt mixture spreading is to spread the mixed asphalt concrete material evenly on the road bottom base or base, and precompacting and shaping it to a certain extent, forming the asphalt concrete base or asphalt concrete surface layer. Pavers can accurately ensure the thickness, width, camber, flatness and compactness of the paving layer. Therefore, it is widely used in asphalt concrete spreading operation of highway, urban road, large freight yard, parking lot, wharf and airport and other projects. It can also be used in the spreading operation of stable materials and dry hard cement concrete materials. The quality of asphalt mixture spreading directly determines the quality and service life of the road