Fixture for replacing line linear insulator under electrification

The utility model discloses a fixture for replacing a line linear insulator under electrification, comprising a screw, an insulating pull rod, a wire-lifting hook and a handle for rotating the screw, wherein a fixture seat which is fixed with a cross arm of a line pole and tower is arranged on the screw. By using the fixture for replacing the line linear insulator under electrification, as the fixture seat is added, the fixture for replacing the insulator can be placed on the parallel position of the insulator of the cross arm, the fixture can be completely vertical to the cross arm after installation, the lifting angle is eliminated, the operation difficulty and intensity are reduced, and the safety is improved.