The invention discloses a cable erecting overhauling car for electric power engineering. The rear portion of a car body is fixedly connected with a tailstock, a driving shaft is rotationally connectedto the tailstock, and the upper end of the driving shaft is rotationally connected with the lower end of the rear portion of a climbing ladder. The upper portion of the rear end of a piston rod is rotationally connected with the lower end of a supporting rod, and the upper end of the supporting rod is rotationally connected with the lower surface of the climbing ladder. The lower portion of the tail end of the piston rod is fixedly connected with the rear end of a rack plate, and the middle of the car body is rotationally connected with a gear. The gear is engaged with the rack plate, and a protrusion part is arranged on the outer side of the gear. The surface of the protrusion part is connected with the front portion of a first conveyor belt in a rolling mode. The car body drives the piston rod to stretch out and draw back in the front-rear direction through working of a hydraulic cylinder, the piston rod stretching out and drawing back in the front-rear direction drives the climbingladder to swing through the supporting rod, and the climbing ladder is erected to facilitate climbing of a worker; and meanwhile, a threaded rod drives the retractable ladder to stretch out while theclimbing ladder is erected, the large climbing height is provided for the worker, and the threaded rod has the self-locking function to prevent the retractable ladder from falling under the effect ofthe gravity.