Electric potential connecting device between shielded gate and underground track

The utility model relates to an electric potential connecting device between a shielded gate and an underground track, aiming at providing the electric potential connecting device which can solve the safety potential problem between the shielded gate and the underground track. The utility model can be realized as follows: the electric potential connecting device between the shielded gate and the underground track is characterized in that a track (1) is connected with a current-limiting resistor (2), the current-limiting resistor (2) is connected with a direct current ampere meter (4), the direct current ampere meter (4) is connected with the shielded gate (6), the shielded gate (6) is connected with a bypass switch (3), the bypass switch (3) is connected with the track (1). The electric potential connecting device can realize that when the ground insulation of the shielded gate (6) is good, the electric potential between the shielded gate (6) and the underground track (1) is equal; when the ground insulation