The technical issues that the new guardrail needs to address are to overcome the aforementioned deficiencies in existing technology and to provide a road guardrail panel with excellent shock resistance, low cost, long service life, higher safety, environmental friendliness, and good performance. The technical solution adopted by the new guardrail to solve these technical issues is: The characteristic of this guardrail panel is that it uses high-molecular-weight PVC material for the panel body, which does not require anti-corrosion or spraying treatments during production, truly achieving environmental friendliness. Additionally, due to the significantly lower cost of PVC material compared to steel, the overall cost is low. The mechanical structure of the guardrail panel is in the shape of an "M," with reinforced holes parallel to the panel body's direction set within the panel body. These reinforced holes are filled with thermally fused glass fiber as reinforcing ribs. Furthermore, to enhance the impact resistance, two rows of reinforced holes and ribs are also set on the elevated portions of the panel body.