The present invention discloses a standard real-model earthing test device. The standard real-model earthing test device comprises a floor tile layer and a soil layer; the floor tile layer and the soil layer are attached to each other along a vertical direction; an earthing grid, a plurality of earthing downleads for connecting ground surface electrical devices, a plurality of air switches and a plurality of underground earthing conductors are arranged in the soil layer; the air switches are connected in series with the earthing grid through the underground earthing conductors; and the earthing downleads of the ground surface electrical devices are directly connected with the earthing grid. According to the standard real-model earthing test device of the invention, the earthing grid is manually laid in the soil layer, floor tiles for the blind tracks of a road are laid on the soil layer, and the real-model earthing test device can be constructed, and therefore, different earthing device performance parameter test equipment can be adopted to perform measurement and comparison through a field actual measurement mode; and various kinds of conditions such as resistance increase of the underground earthing conductors due to corrosion or the fracture of the underground earthing conductors due to corrosion can be simulated, and various kinds of real defect conditions can be also simulated simultaneously. The standard real-model earthing test device of the invention is used for teaching training or experimental verification, or the like, has high practicability and high popularization Value.