The invention discloses a power cable quick connection device, which relates to the technical field of cable connection devices. The device comprises a lead mechanism, a screwing connection mechanism and a head cutting mechanism, wherein the lead mechanism comprises a lead body capable of lifting in the vertical direction; the lead body is provided with two lead holes communicated with the upper surface and the lower surface; the screwing connection mechanism is located right below the lead mechanism and comprises a vertically-arranged wire screwing shaft capable of autorotation; the upper part of the wire screwing shaft is provided with a dual-wire body clamping device; the dual-wire body clamping device is located at the lower outlets of the two lead holes; the head cutting mechanism comprises two inclined bodies with cutting edges capable of cutting oppositely; the two inclined bodies are located at two sides of the dual-wire body clamping device. The wire gatherer can firmly wind the cable on a wire winder, and the winding is uniform and reasonable.