The invention relates to a maintenance apparatus of electric equipment, more particularly to a storehouse management system of ground wires, wherein the storehouse management system is used for storehouse-in and storehouse-out management of the ground wires that is used for electric power overhaul. The system comprises: hitching sensing devices, which are installed on wire clamps of a plurality of groups of ground wires; a plurality of stator indicators, which correspond to all groups of the hitching sensing devices; and a ground wire manager, which is installed in a storehouse. The hitching sensing devices comprise hitching inductors that are controlled by MCU and wireless transceivers. The stator indicators comprise hitching inductors that are controlled by MCU and wireless transceivers. The ground wire manager includes a hitching inductor that is controlled by MCU and a wireless transceiver. According to the invention, connection of wireless signals among the hitching sensing devices, the stator indicators and the ground wire manager, so that the inbound and outbound states of the ground wires can be monitored accurately. Moreover, the on-site hitching and dismounting states can be monitored by the stator indicators, so that safety hazards caused by human negligence can be reduced.