The invention discloses a control method and device for an air-conditioner and the air-conditioner. The method includes the steps that current operating parameters of the air-conditioner are acquired, and the operating parameters comprise at least one of the operating time of a compressor, the rotating speed of a draught fan, the indoor temperature and the outdoor temperature; whether the wind speed of the air-conditioner can be controlled or not is judged according to the operating parameters; and the wind speed of the air-conditioner can be controlled according to the judging result. By means of the control method and device for the air-conditioner and the air-conditioner, the technical problem that an air-conditioner in the correlation technique cannot meet the comfort air supply requirement is solved.