The embodiment of the invention provides a method and device for starting a self-cleaning function of an air conditioner, a self-cleaning air conditioner, a storage medium, and an electronic device, the method comprises the following steps of: obtaining a first current value of the air conditioner during the cooling operation of the air conditioner, wherein the obtained current value is a completemachine current value; determining whether the self-cleaning function of the air conditioner is started according to the difference between the first current value and the standard current value of the air conditioner. The problem that an air conditioner cannot automatically trigger the cleaning function in the prior art, so that the air conditioner can automatically decide whether the self-cleaning function is triggered or not according to the change of the current value during operation, the working efficiency of the air conditioner is improved, and the user experience is improved.