The utility model relates to the field of cable erection construction operation auxiliary equipment, in particular to a pair of live-line work wire clippers, which comprises a support assembly and a wire breaking mechanism, and is characterized in that the support assembly comprises an insulating rod and a switch handle; the wire breaking mechanism comprises an insulating case, an insulating sleeve, a screw rod, a motor, a gear set, a speed reducer, an insulating wire clipper, a motor controller and a power supply; the upper part of the insulating sleeve extends out of the insulating casing and is fixed with the handle end of the insulating wire clipper. The lower part of the insulating sleeve is provided with a screw nut. The screw rod is arranged in the insulating sleeve; a self-lubricating positioning plate is arranged at the upper part of the screw rod; the lower part of the screw rod is sleeved on the screw rod nut, extends out of the insulating sleeve and then is sequentially connected with the gear set and the thrust bearing, the extending end part of the lower part of the screw rod is fixed on the movable bottom plate, and the movable bottom plate is hinged with the bottomplate of the insulating case; the output end of the motor is sequentially connected with the reducer and the gear set. The utility model has the advantages of simple and compact structure, higher convenience in operation, high use safety, high portability and higher popularization value.