The utility model discloses a breakwater which is arranged between the foreshore and the backshore, and the breakwater includes a base bed and a breakwater body, the breakwater body is a slope body piled up by the plied filling materials on the base bed; the breakwater body includes an upperstream slope surface facing the foreshore, a downstream slope surface facing the backshore, and a breakwater top pavement connecting the upper ends of the upperstream slope surface and the downstream slope surface; the upperstream slope surface covers the upperstream protective slope surface and the downstream slope surface covers the downstream protective slope surface. The breakwater provided is characterized in that an empty case having a trapezoidal section is embedded in the breakwater body, and the empty case is arranged along the same center line with the base bed; the breakwater top pavement is an OGFC pavement. Therefore, the breakwater provided effectively reduces the additional stress of the foundation and the general settlement of the foundation, as well as adjusts the uneven settlement; meanwhile, the breakwater provided effectively reduces water flow velocity, increases the friction between the automobiles driving thereon and the pavement, as well as increases the safety.