The invention discloses a cable traction device for power transmission line routing. The cable traction device comprises wheels, a motor, a main shaft and a shaft coupler; a support rod is installed on the surface of the wheel, a flange plate is arranged by the side of the support rod, the motor is installed on the surface of the flange plate, and a wireless receiver is arranged on the surface of the motor; the main shaft is connected next to the motor, the end of the main shaft is connected with the shaft coupler, a movable shaft is arranged on the shaft coupler, a bearing block is arranged next to the movable shaft, a gear is arranged next to the bearing block, a push block is arranged on the gear surface, and a winding frame is arranged at inner side of the wheel. The cable traction device disclosed by the invention has the advantages that the workload of an operator can be greatly reduced, and the number of the operator is reduced, the enterprise cost is lowered, and the economic benefit is improved.