The invention belongs to the technical field of air conditioners, and aims to solve the problem that according to an existing air conditioner, the time for starting a self-cleaning mode cannot be judged. Therefore, the invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises an indoor unit; and the self-cleaning control method comprises the steps of enabling the air conditioner for executing a first standard working condition at a current state; acquiring an outlet air speed of the indoor unit under the first standard working condition; comparingthe outlet air speed of the indoor unit under the first standard working condition with a change rate of a first standard air speed and a first preset value; and according to a comparison result, judging whether the self-cleaning mode is executed or not. According to the self-cleaning control method for the air conditioner provided by the invention, the air conditioner can execute the self-cleaning mode under a reasonable condition, so that the occurrence of the phenomenon that the air conditioner is self-cleaned frequently so as to be wasted in energy is avoided, and meanwhile, the occurrenceof the phenomenon that the air conditioner cannot be self-cleaned after a long time so as to cause poorer air quality to affect the health of people is avoided.