Switch cabinet and control method thereof

The invention discloses a switch cabinet and a control method thereof. The switch cabinet comprises a humidity probe, a controller, monitoring equipment, a cabinet body, a cabinet door and a safety door lock, and is characterized in that the cabinet body comprises an inner shell and an outer shell, a gap is reserved between the outer wall of the inner shell and the inner wall of the outer shell so as to form a cavity, the wall surface of the inner shell is provided with air inlet holes, the inner side of the inner shell is provided with lighting equipment, and the lighting equipment is in linkage with the safety door lock; the safety door lock is connected with the monitoring equipment, and the on/off state of the safety door lock is monitored by the monitoring equipment; the monitoring equipment is connected with the controller so as to be used for transmitting a monitoring result to the controller; the outer shell is provided with an air-exchange hole, and the cavity is internally provided with a negative pressure generator at the part of the air-exchange hole; and the cavity is internally provided with a heating plate, the heating plate is connected with the controller, and on/off between the heating plate and a power supply is controlled by the controller. The switch cabinet disclosed by the invention realizes the purposes of controllable heating and being convenient for overhauling of the operation and maintenance personnel, and is energy-saving and safe.