The invention discloses a high-voltage cable cross interconnection grounding system transfer device, which comprises protectors R1 to R3, current meters A1 to A3, voltage meters V1 to V3, air switches K1 to K6 and wiring terminals P11 to P32. The high-voltage cable cross interconnection grounding system transfer device has the beneficial effects that safe transfer can be carried out between a cross interconnection mode and a direct grounding mode via air switches; the original cable grounding box can be replaced or maintained in the case of live cable, a defected grounding box can be isolated, safe operation of a maintenance person can be ensured, and a new breakthrough of lively maintaining the cable grounding system can be realized; as the device is internally integrated with current meters and voltage meters, live cable detection can be carried out after connection with the cable grounding wire, and the current load state can be intuitively analyzed through display of data of the current meters and the voltage meters in the case of maintenance; and the size is small, and carrying is convenient.