The utility model discloses a high security switch board, the power distribution box comprises a power distribution cabinet body, all set up the ventilation hole that the equidistance was arranged around the switch board body lower part, the equal fixedly connected with dust screen in inside in every ventilation hole, a side of switch board body is provided with first dodge gate and second dodge gate respectively, the heat dissipation window has been seted up on the first dodge gate, the lateral surface of first dodge gate is provided with the lock, the lateral surface of second dodge gate is provided with the electromagnetic lock, the first baffle of inner wall fixedly connected with of switch board body, the upper portion of first baffle is provided with the control room, the lower part of first baffle is provided with electricity distribution room, the interior diapire in control room is provided with operating panel and microprocessor respectively. This high security switch board has effectually avoided the electromagnetic leakage, has effectually avoided other people to open this switch board, and the security performance is high, can carry out effectual heat dissipation to this switch board, and the radiating effect is good, has certain protectiveness to the consumer, and protectiveness can be good.