Cable high-temperature testing device

The utility model discloses a cable high-temperature testing device, and particularly relates to the technical field of cable high-temperature testing, which comprises a heat insulation box body, an insulation box cover is arranged at the top of the heat insulation box body, heat conduction oil is filled in the heat insulation box body, and a plurality of buckles are arranged between the heat insulation box body and the insulation box cover. A heating assembly used for heating heat conduction oil is arranged in the heat insulation box body. And the insulating box cover is provided with a high-temperature testing mechanism for testing the high-temperature resistance of the cable. According to the utility model, the heated heat-conducting oil in the heat-conducting inner pipe is used for carrying out high-temperature test on the cable, once the cable is damaged, the two leads communicated with the interior of the heat-conducting inner pipe connect the red light lamp in series in a circuit where the storage batt