The invention discloses a high voltage diversion assembly for the grounding simulation test. The high voltage diversion assembly comprises a grounding body, a measuring coil, a lead, a lead insulating cylinder, a run-through insulating cylinder, a protection box and insulated support feet for fixing the protection box. The two sides of the measuring coil and the protection box are respectively provided with holes for the insertion of the run-through insulating cylinder. The run-through insulating cylinder passes through the measuring coil and the protection box to fix the measuring coil inside the protection box. The grounding body passes through the run-through insulating cylinder to be connected with the ground. The protection box is further provided with a hole for the lead insulating cylinder to pass through. The lead insulating cylinder and the lead in the lead insulating cylinder pass through the protection box to be connected with the measuring coil. The protection box is fixed on the ground via the insulated support feet. According to the technical scheme of the high voltage diversion assembly, the run-through insulating cylinder is arranged between the grounding body and the measuring coil, so that the high voltage is prevented from being diverted to a measurement site via the measuring coil and the lead. Meanwhile, the damage of the high voltage to equipment and people outside the measurement site can be avoided. Therefore, the diversion assembly is high in safety coefficient.