Roof guardrail structure with good protective property

The utility model discloses a roof guardrail structure with good protection performance, and relates to the technical field of photovoltaic roof guardrails, the roof guardrail structure comprises a first mounting plate, the first mounting plate is fixedly connected with a photovoltaic roof through a mounting assembly, the upper end of the first mounting plate is rotatably connected with a first guardrail assembly, and the upper end of the first guardrail assembly is rotatably connected with a second mounting plate. The upper end of the first guardrail assembly is rotationally connected with a second guardrail assembly, when the second guardrail assembly and the first guardrail assembly are both perpendicular to a roof, the second guardrail assembly is temporarily fixed to a first mounting plate through a first limiting assembly, and at the moment, the positions of the second guardrail assembly, the first mounting plate and the first guardrail assembly are relatively fixed; and when the angle between the secon