Bridge guardrail structure

The utility model discloses a bridge guardrail structure which comprises a bridge body, guardrail structures are arranged on the two sides of the top end of the bridge body, each guardrail structure comprises a top connecting piece, a plurality of installation bases are fixedly arranged at the bottom end of each top connecting piece, and protective railings are arranged at the bottom ends of the installation bases in a clamped mode. A plurality of telescopic rods and a plurality of buffer springs are fixedly arranged on the surfaces of the protective railings, according to the bridge guardrail structure, the impact resistance of the protective railings can be improved through the arrangement of the annular buffer pad, the arc-shaped strips, the telescopic rods and the buffer springs, and then the structural strength of the guardrail structure is improved; the two fixing bolts are loosened to be separated from the two threaded holes, the protective barrier is not fixed any more, then the two locking bolts are