Fuente: Wipo "IOT" The embodiment relates to an operation method of an IoT server for an IoT interworking service. According to an embodiment, the operation method of an IoT server for an IoT interworking service includes the steps of: receiving a control command through a first IoT device; receiving content playback status information from a second IoT device; and determining control information on the second IoT device corresponding to the control command according to the playback status information and transmitting the information to the second IoT device. COPYRIGHT KIPO 2022