The invention discloses a bridge maintenance device comprising a vehicle frame, wherein a mounting cavity is arranged in the left end surface of the vehicle frame; a pull rod is fixedly arranged in the mounting cavity; a plurality of motor-driven walking wheels are fixedly arranged at the lower end surface of the vehicle frame; a rotation bin with a rightward opening is arranged in the vehicle frame; a joint plate is fixedly arranged at the rear end wall of the rotation bin; a holding cavity provided with an upward opening and positioned in the vehicle frame is fixedly arranged on the right side of the joint plate; a motor A is fixedly arranged in the rear end wall of the rotation bin; a rotation base is fixedly arranged at the outer surface of a rotation rod of the motor A; upper and lower corresponding push rods are fixedly arranged at the upper and lower end surfaces of the rotation base; sleeves A are in movable and cooperative connection with the outer surfaces of the push rods; rotation arms A are fixedly arranged at the front end surfaces of the sleeves A; and push columns extending rightwards are rotationally arranged at the outer surfaces of the rotation arms A. The bridgemaintenance device is simple in structure and convenient for use. The bridge maintenance device adopts multi-mechanism cooperative work to realize efficient refuse disposal, thereby effectively reducing the labor intensity of personnel and improving the bridge maintenance efficiency.