Fuente: Wipo "IOT" Provided is the technology for an IoT gateway device controlling IoT devices by itself in case of an emergency situation and a method thereof. According to one embodiment of the present invention, the IoT gateway device comprises: an IoT device management unit responding to detection of the network disconnection to acquire status information of one or more IoT devices designated as a network disconnection monitoring target among a plurality of IoT devices connected to the IoT gateway; an emergency situation determination unit analyzing the acquired status information to determine whether an emergency situation occurs or not; and an output unit responding to the determination that the emergency situation has occurred, to output a control signal in accordance with emergency situation response scenario information stored in the IoT gateway. COPYRIGHT KIPO 2021