Clamping tool for live replacing of insulator for tangent tower

The utility model discloses a clamping tool for the live replacing of an insulator for a tangent tower. The clamping tool comprises a cross-arm side-edge fixture which comprises a positioning steering shaft, a fixture die cross arm block, and an insulating pulling plate. The interior of the positioning steering shaft is provided with a universal screw rod. The structural main points of the clamping tool lie in that the universal screw rod is provided with axle holes distributed along the direction of the axis of the screw rod; the axle holes are threaded holes; the clamping tool also comprises a connecting screw rod; the connecting screw rod comprises a small end which can stretch into the axle holes of the universal screw rod, and also comprises a big end which has the same external diameter and thread as the universal screw rod; the small end of the connecting screw rod is provided with a thread which is matched with the axle holes. The device provided by the utility model can avoid the condition of work fa