A metal cabinet with electrically conductive hinges comprises a cabinet body and a cabinet door that are made of an electrically conductive metal. An LED luminous body is disposed in the cabinet door, and at least two electrically conductive hinges for enabling the cabinet door to rotate relative to the cabinet body are disposed between the cabinet door and the cabinet body. Each of the hinges comprises a first hinge body and a second hinge body. The first hinge body is connected to a first electrically conducts wire connecting the first hinge body to a power supply. A first outer insulation pad is disposed between the first hinge body and the cabinet body. The second hinge body is connected to a second electrically conductive wire connecting the second hinge body to the LED luminous body. A second outer insulation pad is disposed between the second hinge body and the cabinet door.