The invention discloses a grounding device for a high-soil resistivity region. The grounding device comprises a plurality of grounding plates, wherein each grounding plate is mounted at the periphery of grounding flat steel; a plurality of grounding electrodes are also arranged on the grounding flat steel; the grounding flat steel is also welded to the upper part of a pole tower through a pole tower anti-thunder down lead; the pole tower is fixed on the ground through pole tower support legs; the grounding flat steel takes the grounding electrodes as nodes, and each grounding plate is arranged between every two adjacent nodes. The grounding area can be effectively enlarged, the value of the grounding resistance can be reduced, and the anti-thunder level of a circuit is increased.