The present invention relates to a multi-insulation tool synchronous withstand voltage test device. The multi-insulation tool synchronous withstand voltage test device comprises a base; the base is provided with a water storage tank for electrically connecting with the high-voltage electricity; a clamping mechanism for holding the insulation tool is arranged above the water storage tank; and the clamping mechanism is driven by a driving mechanism to drop into the water in the storage tank or lift off the storage tank. The multi-insulation tool synchronous withstand voltage test device providedby the present invention has a simple structure.