Air conditioner control method, air conditioner control device and air conditioner

The invention discloses an air conditioner control method. The air conditioner control method comprises the following steps of determining the volume of an environment with an air conditioner; determining an audio outputting parameter of an audio outputting device according to a corresponding relation between the volume of the environment and the audio outputting parameter; and adjusting the audio outputting parameter of the audio outputting device. Because the audio outputting parameter is in direct proportion to the volume of the environment, or an environment volume section with a large initial value corresponds to a large audio outputting parameter, feedback sound outputted by the audio outputting device is matched with the environment, the problem that a user cannot listen to the feedback sound in a noisy environment or is disturbed by noise due to over large feedback sound is solved, and the user experience is improved. The invention also discloses an air conditioner and a control device thereof.