Air conditioner and control method and device thereof

The invention provides an air conditioner and a control method and device thereof. The control method of the air conditioner comprises the steps that in a refrigeration mode for controlling the air feeling, the indoor temperature T1 and the preset target temperature Ts are obtained; on the basis that T1 is smaller than or equal to Ts + delta T1, the humidity control process is started, and delta T1 is a first preset temperature difference value; and in the humidity control process, the indoor moisture content d1 and the preset target moisture content ds are obtained, and the frequency of a compressor and the rotating speed of a draught fan of an indoor unit of the air conditioner are controlled according to the relation between d1 and ds. According to the control method of the air conditioner, new wind feeling control of temperature and humidity joint debugging can be achieved, original wind temperature comfort is upgraded to body feeling comfort of temperature, humidity and wind speed, and the comfortable wind feeling experience of a user can be improved.