Fecha de publicación: 15/10/2021 Fuente: Wipo "IOT" The invention discloses an IOT device control method based on face image feature recognition, an IOT and a terminal device, and belongs to the technical field of the Internet of Things, and the method comprises the steps: obtaining a face image of a user; recognizing face image features of the face image, and determining the feature changes in the face range of the user; determining a control instruction for the IOT equipment based on the feature change in the face range; and sending the control instruction to the IOT equipment, so that the IOT equipment responds to the control instruction. According to the invention, the effect that a user can control the IOT equipment without making a sound or operating on the terminal equipment is realized, and the problem that a special group cannot normally control the IOT equipment in the prior art is solved.