The utility model belongs to the technical field of wire clamp installation, and particularly relates to an electric installation tool for a parallel groove clamp, which comprises a wire clamp installation mechanism, the wire clamp installation mechanism comprises a wire clamp installation support, and the wire clamp installation support is provided with a telescopic mechanism fixedly connected with the parallel groove clamp; the wire clamp installation mechanism also comprises a clamping unit used for clamping a parallel groove clamp, and the clamping unit is fixed on the wire clamp installation support. The wire clamp installation mechanism also comprises an unlocking unit which acts on the clamping unit and loosens the parallel groove clamp, and the unlocking unit is fixed on the wire clamp installation support. The beneficial effects of the utility model are that the parallel groove clamp can be rapidly and accurately installed and fixed through the wire clamp installation mechanism, and under the driving of the telescopic rotating motor, the telescopic sleeve drives the fastening bolt of the parallel groove clamp to rotate and rise, so that the parallel groove clamp firmly clamps a main wire.