GROUNDING APPARATUS FOR DISPLAY OF CONNECTING

A grounding device which displays a connection state is provided to represent a ground connection state by using a sensor, which detects a connection state between a ground line and the grounding device. A grounding device which displays a connection state includes a self-standing ground box(100) and a rack-type ground box(200). A mesh main ground line is coupled with the self-standing ground box, which includes plural ground terminals coupled with a main ground copper bar. The self-standing ground box includes a sensor for monitoring a ground state of an electric equipment. The rack-type ground box is coupled with the self-standing ground box and receives a ground terminal, which grounds the equipment through a main ground terminal. The rack-type ground box includes a sensor for monitoring the ground state of the electric equipment.