The invention discloses an electric appliance control method and an electric appliance. The electric appliance comprises a first detection device and a second detection device which are used for acquiring identical parameters or parameters with a corresponding relationship. The detection result of the first detection device is used for participating in control over the first function of the electric appliance. The detection result of the second detection device is used for participating in control over the second function of the electric appliance. According to the electric appliance control method, the first detection device and the second detection device which are used for acquiring the identical parameters or the parameters with the corresponding relationship are arranged, the detection result of the first detection device is used for participating in control over the first function of the electric appliance, the detection result of the second detection device is used for participating in control over the second function of the electric appliance, and therefore when one detection device is damaged, the other functions of the electric appliance are not influenced, or the functions of the electric appliance can be maintained in the manner of calling the other detection device, and the operating safety and reliability of the electric appliance are improved.