The invention relates to a split type wire lifter of four bundled leads and an application structure of the wire lifter. The wire lifter comprises a rod-shaped wire lifter body, one end of the wire lifter body is provided with a first hook, the middle portion of the wire lifter body is provided with a second hook, the first and second hooks are in the same side, openings of inner hook grooves of the first and second hooks face the same side, and one end, opposite to the first hook, of the wire lifter body is provided with a hinge hole. The wire lifter and the application structure thereof have the advantages that the problem that a replacement tool is heavy is solved, the tool is light, structural design is reasonable, installation operation is simple and convenient, and the labor intensity of workers is reduced. The working efficiency is improved, and a more efficient and safer work method is provided for in power-off as well as live-line work.