The invention discloses a real-time monitoring cabinet for a ground wire. The monitoring cabinet comprises a monitoring cabinet body, wherein monitoring devices are arranged on the cabinet body, and the monitoring devices comprise an aeronautic plug, an AD(analog-digital) converter, a controller and an indicator lamp which is arranged on the cabinet body; the aeronautic plug comprises a socket arranged on the cabinet body and a plug which is fixed to the ground wire, a core of the socket is connected with the controller through the AD(analog-digital) converter, and an output terminal of the controller is connected with an input terminal of the instruction lamp. For the invention, the aeronautic plug is used for detecting whether the ground wire is homed or not, through the use of the AD(analog-digital) converter and the controller, a control signal is output to control the indicator lamp to flicker and a warning device to warn, a connection state of the ground wire on a ground wire cabinet can be monitored in a real-time manner, at the same time as the aeronautic plug and the socket are in one-to-one correspondence, the phenomenon that the ground wire is wrongly homed is effectively prevented, damage caused by leakage of the ground wire and disordered use can be avoided, and a misoperation accident is prevented from occurring.