Novel safety guardrail structure for highway bridge

The utility model discloses a novel safety guardrail structure for a highway bridge. The novel safety guardrail structure comprises square columns, a lower strip block, an upper strip block, a handrail, a propaganda carrier plate, a rotating disc, a connecting block, a screw hole block and a long screw rod. The guardrail is reasonable in structure, the rotating disc is rotated to drive the long screw rod to rotate, so that the upper connecting block and the lower connecting block which are connected through the screw hole block are close to each other or separated from each other, the effect of changing the distance between the upper strip block and the lower strip block is achieved, and the effective height of the guardrail is conveniently adjusted; the handrails can be separated from the corresponding inserting grooves, the effect of convenient disassembly and assembly is achieved, the mode that the handrails are connected with the inserting grooves in an inserted mode is adopted, a traditional welding mode