Fecha de publicación: 22/12/2020 Fuente: Wipo "IOT" The invention provides a face information issuing method, device and equipment. The face information issuing method comprises steps of all IOT devices which are registered to a management platform andbelong to a specified object being divided into at least one IOT device group; wherein the IOT devices in the same IOT device group are located in the same local area network, and the number of the same face pictures required by any two different IOT devices in the same IOT device group exceeds a preset threshold; selecting one IOT device from each IOT device group as a main IOT device of the IOTdevice group; and issuing the group information of the IOT equipment group and the common face information required by all the IOT equipment in the IOT equipment group to the main IOT equipment, so that the main IOT equipment issues the common face information to other IOT equipment in the IOT equipment group indicated by the group information. By adopting the method provided by the invention, equipment resources of the management equipment can be saved while the face information is issued.