High-speed wave guardrail board is the main form of semi-steel guardrail. It is a continuous structure that is spliced with corrugated steel guardrail boards and supported by uprights. It uses the deformation of the soil foundation, columns, and beams to absorb the collision energy, and force the out-of-control vehicles to change direction and return to the normal driving direction to prevent the vehicles from rushing out of the road, so as to protect the vehicles and passengers and reduce the damage caused by accidents. The corrugated beam guardrail is both rigid and flexible, has a strong ability to absorb collision energy, has a good sight-inducing function, can be coordinated with the road alignment, beautiful in appearance, can be used on small radius bends, and the damaged part is easy to replace.