AIR CONDITIONER, AND CONTROL METHOD AND DEVICE THEREFOR

Disclosed is a method for controlling an air conditioner. The air conditioner includes an indoor unit which includes a housing having an air outlet, an air outlet passage formed in the housing and communicated with the air outlet; and a first air guiding plate comprising a plurality of air dispersing holes and rotatably mounted at a lower side of the air outlet through a rotating shaft to allow to open or cover the air outlet by rotation; and a second air guiding plate mounted in the air outlet passage. The method includes: acquiring an indoor environmental humidity under a breezeless mode; determining an air shielding position of the first air guiding plate according to the indoor environmental humidity; and controlling the first air guiding plate to rotate to the air shielding position. Further disclosed are a control device of an air conditioner, an air conditioner and a computer readable storage medium. Water condensation can be prevented of air conditioning, while ensuring user's demand for breezeless feeling.