Highway safety guardrail

The utility model relates to a highway safety guardrail, which comprises bases, upright posts, transverse rods and vertical rods, wherein each base is arranged under the corresponding upright post, and is fixed with the ground, the adjacent upright posts are connected through the at least two parallel adjustable transverse rods, each crossing point of the transverse rods and the upright posts are fixed through U-shaped screw rods, each transverse rod is divided into a movable end and a fixed end, the movable end and the fixed end are respectively hollow rods with different diameters, a certain number of screw holes are uniformly distributed in each hollow rod forming the movable end, the diameter of each hollow rod forming the movable end is greater than the diameter of each hollow rod forming the movable end is greater than the diameter of each hollow rod forming the fixed end, the inner diameter of each hollow rod forming the movable end is matched with the outer diameter of each hollow rod forming the fixed end, each fixed end is connected with the corresponding movable end through screw bolts, and the top end of each upright post is provided with a post cap. When the highway safety guardrail is used, the effects are obvious, and the problem of traffic accidents since drivers and passersby cannot clearly see the guardrail at night can be solved.