High-low voltage power distribution cabinet

The invention relates to a power distribution cabinet, in particular to a high-low voltage power distribution cabinet. The invention provides a high-low voltage power distribution cabinet which can isolate air for fire prevention when the interior is on fire. A high-low voltage power distribution cabinet comprises a power distribution cabinet body, a cabinet door and a door handle, one side of the power distribution cabinet body is rotatably connected with the cabinet door, one side, far away from the power distribution cabinet body, of the cabinet door is in bolted connection with the door handle, the high-low voltage power distribution cabinet further comprises a twisting cover, and one side of the power distribution cabinet body is in screwed connection with the twisting cover. The temperature inside the power distribution cabinet body is monitored through the temperature detector, the air cylinder and the vacuum pump can be started to enable the sealing plate to move upwards to block the ventilation holes