Highway one-way limiting plate

The invention discloses a highway one-way limiting plate, and belongs to the field of traffic equipment. The highway one-way limiting plate is formed by fixedly connecting a steel rectangular upper plate surface with a lower plate surface at the front and back ends, wherein the section of the lower plate surface is V-shaped; the middle of the lower plate surface is arched; the tangent lines at the two ends of the lower plate surface upwards and flatly extend; multiple rectangular support strips are fixedly connected between the upper plate surface and the lower plate surface; and the back end between the upper plate surface and the lower plate surface is filled with concrete or steel heavy fillers. The highway one-way limiting plate is simple in structure, has effects of deceleration and one-way limiting, has no wearable parts, and is convenient to be used and installed.