The utility model relates to a transformer substation grounding technology field, concretely relates to high soil resistivity area substation grounding structure, including a perpendicular ground connection deep well, be equipped with a ground connection steel pipe in the perpendicular ground connection deep well, it is filled with the friction reducer to irritate in the ground connection steel pipe, the lower part of ground connection steel pipe is equipped with a plurality of grout holes, the upper portion of ground connection steel pipe is equipped with the flat piece of a plurality of horizontal ground connection. In the scheme original deep well ground connection, irritate in the ground connection steel pipe and fill the friction reducer to set up a plurality of grout holes, when fully reducing the ground resistance of transformer substation, make be connected between ground connection steel pipe and the perpendicular ground connection deep well inseparabler. Further the settlement of high soil resistivity area resistivity has been guaranteed to the degree of depth and diameter through setting up perpendicular ground connection deep well and ground connection steel pipe, and messenger transformer substation can normal operating.