Auxiliary device for erecting cable

The invention relates to the technical field of power transmission line facilities, and particularly discloses an auxiliary device for erecting a cable. The distance between the two movable supporting ladders can be adjusted through the hand-cranking wheel and the traction rope, after the distance is reduced, the height of the supporting table is naturally increased, and the supporting rod on the supporting table is also increased at the same time, so that the height of the supporting device can be determined by adjusting the distance, and a cable to be erected is supported; due to the telescopic arrangement of the movable supporting ladder and the supporting rod, the cable can be preliminarily supported when the supporting table is located at the lower end, namely the distance is large, and the supporting table can be lifted to a certain height by reducing the distance and then climb up the movable supporting ladder to stretch and support the telescopic supporting rod manually. And any method is convenient a