Fuente: Wipo "IOT" The present invention provides a method for interlocking Internet of things (IoT) platforms to interlock a plurality of IoT platform servers with each other. According to the present invention, the method comprises: a step of an integrated application installed in a user terminal using a first user identification (ID) to log in a first IoT platform server of a first company; a step of the integrated application requesting the first IoT platform server to interlock with a second IoT platform server of a second company; a step of the first IoT platform server requesting a platform interlocking server to interlock the first user ID with the second IoT platform server; a step of the platform interlocking server providing an address of the second IoT platform server to the first IoT platform server; a step of the first IoT platform server providing an address of the second IoT platform server to the integrated application; a step of the integrated application using the address of the second IoT platform server to connect to the second IoT platform server and using a second user ID to log in to the second IoT platform server; a step of the second IoT platform server requesting interlocking with the second user ID to the platform interlocking server when the integrated application is succeeded in logging in to the second IoT platform server with the second user ID; a step of the platform interlocking server associating and storing the first user ID registered in the first IoT platform server and the second user ID registered in the second IoT platform server, and providing an interlocking complete signal to the second IoT platform server; and a step of the second IoT platform server providing the interlocking complete signal to the integrated application. COPYRIGHT KIPO 2017