The invention discloses a device for live installation of an overhead insulated wire lightning protection puncture clamp. The device comprise an upper end seat, a lower end seat, an insulation long rod, and a rocker insulation rod; the lower end seat is fixed with a lower wire clamp holder; a sliding rod is arranged at the upper end of the lower end seat; the upper end seat is fixed at the upper end of the sliding rod; the upper end seat is fixed with the upper wire clamp holder; the lower end of the lower end seat is fixed with the insulation long rod; a transmission mechanism is fixed on theinsulation long rod; the upper end of the rocker insulation rod penetrates through the first through hole to be fixedly connected with a trapezoid lead screw; the upper end of the trapezoid lead screw is movably connected with an upper end base; the trapezoid lead screw is sleeved with a sliding connection block; the sliding connection block is provided with an installation hole; the sliding rodpenetrates through the installation hole; an impact motor is arranged on the upper end base and located above the upper wire clamp holder; and the impact motor is provided with two output ends. According to the device for the live installation of the overhead insulated wire lightning protection puncture clamp, the lightning protection puncture clamp can be installed under the condition that a cable is electrified, the installation efficiency is high, the construction time is greatly shortened, and no influence is caused to power utilization users.