Fuente: Wipo "IOT" An objective of the present invention is to provide an internet of things (IoT) broker server which sets priorities to efficiently control IoT devices in accordance with the priorities. To achieve the objective, the IoT broker server processes compatibility of different communication methods between an IoT platform server and IoT devices, and sets priorities in accordance with a control message of the IoT platform server to control the IoT devices. The IoT broker server which sets the priorities in accordance with the control message of the IoT platform server to control IoT devices is provided to connect various IoT devices using different communication methods to an IoT platform network to use the IoT devices and control the IoT devices in accordance with the priorities to efficiently use IoT resources. Even if communication with the IoT platform server is interrupted, IoT devices can be managed and used in accordance with importance. COPYRIGHT KIPO 2019