Fuente: Wipo "IOT" A safety detection method, an apparatus and a device are provided. The safety detection apparatus can be placed in the IOT network. The IoT terminal in the IoT network transmits data through wirelesstechnology, and the security detection device includes a software radio unit, so that all wireless signals in the wireless coverage range can be monitored, thereby obtaining a communication message ofthe IoT terminal. The embodiment utilizes the security detection device to perform security detection on an IoT terminal in an IoT network, and has no contact and no invasion to the IoT terminal, anddoes not depend on the detection capability of the IoT terminal itself. Moreover, by acquiring the target operation characteristics of IoT terminal and combining with the normal operation characteristics of history, we can find out whether the IoT terminal is operating abnormally or not, and realize the security detection of IoT terminal.