Fuente: Wipo "IOT" The present invention relates to an integrated management system for IoT devices capable of clustering IoT devices of various scales ranging from smart homes and smart offices requiring small-scale IoT to smart buildings and factories requiring IoT control by group. The system includes: a smart cluster controller performing intergroup or inter-cluster dynamic cooperative management and remote connection control so as to form groups or clusters by connecting a plurality of IoT devices; a cluster controller management means connected to the smart cluster controller through wireless WiFi/BLE-based network connection to control and manage the plurality of IoT devices by individual, cluster and group; and a user terminal in which the cluster controller management means is embedded, and instructing the individual, cluster and group management of the plurality of IoT devices. Therefore, the system can build an IoT environment by applying systematic control techiques to a large IoT group having a hierarchical structure. COPYRIGHT KIPO 2021