The invention discloses a novel armored metal-enclosed high-voltage switch device, and relates to the technical field of power facilities. The device comprises a cabinet body, a cabinet door, instruments, buttons, a handle and a supporting plate. A cabinet door and a supporting plate are arranged on the cabinet body. An instrument, a button and a handle are arranged on the cabinet door. The cabinet body is composed of a shell, supporting legs and a back plate, the supporting legs and the back plate are arranged on the shell, the supporting plate is composed of a fixing frame, a conductive rod,a fixing rod and a fixing block, the fixing frame is provided with the conductive rod and the fixing block, the fixing block is provided with the fixing rod, the back plate is composed of a connecting plate, a conductive plate and a cover plate, and the connecting plate is provided with the conductive plate. The high-voltage switch device is high in practicability and very convenient to use, fault electric arcs can be rapidly led into the ground, normal work of internal power equipment is kept, workers can conveniently install and maintain electronic device in the cabinet, the workload of theworkers is reduced, and the labor intensity of the workers is reduced.