The invention relates to the electrician unkeep tool technical field, and specifically relates to a ground wire device with early warning and electricity testing functions; the ground wire device comprises a wiring frame clamp with one side opening, wherein the wiring frame clamp is formed by a top plate, a clamp plate, a side plate and a bottom plate; the clamp plate is connected with the side plate through a slide block and a slide groove, so corresponding surfaces of the top plate and the clamp plate can form a wire jaw; one end of a push-pull rod is connected with the clamp plate, and the other end penetrates the bottom plate and is placed in an insulation rod; the push-pull rod between the clamp plate and the bottom plate is provided with a pressure spring; the insulation rod is provided with an approach electric alarm and a hoop; an arc-shaped brake rod penetrates a brake rod slide groove on the insulation rod and is connected with the push-pull rod; two ends of the insulation rod are respectively connected with the bottom plate and a telescopic rod; the top of the wiring frame clamp is provided with a voice type high voltage electric tester and a wire foreign matter removing scissors; the side face of the wiring frame clamp is provided with a ground lead wire having a ground screw; the ground screw is provided with a foot pad. The ground wire device is high in safety, easy to control, and can greatly improve working efficiency of power working personnel.