The utility model discloses a device for quickly hanging a ground wire. The device comprises a lifting device, a mobile control platform, a hook and a three-phase ground wire short-circuiter, the lifting device comprises an electric telescopic mast and a first motor for driving the electric telescopic mast to lift; wherein the electric telescopic mast is fixed on the mobile control platform, the top of the electric telescopic mast is connected with the hook clamp, the hook is fixed on the electric telescopic mast through the hook clamp, the three-phase ground wire short-circuiter is connectedwith a ground bar fixing point on site, and the hook is connected with the three-phase ground wire short-circuiter through a ground wire. According to the utility model, the hook can be lifted to anyworking height at a proper position; therefore, the hook is hung on a line, manual operation for hanging the ground wire is not needed, the potential safety hazard of manual hanging is avoided, the hanging work of all ground wires on site can be met, the operation is simple and convenient, the time required for operating the ground wire is saved, the working efficiency is improved, and maintainershave longer effective maintenance time for maintenance.