High-speed corrugated guardrail board is the main form of semi-steel guardrail. It is a continuous structure spliced with corrugated steel guardrail boards and supported by columns. The corrugated beam guardrail is both rigid and flexible, and has strong ability to absorb collision energy It has a good sight line induction function, can be coordinated with the road line, beautiful in appearance, can be used on small radius bends, and the damaged part can be easily replaced.