The invention provides an air conditioner control method and device, electronic equipment and an air conditioner, and relates to the technical field of air conditioning. The air conditioner control method comprises the following steps of: obtaining a shutdown instruction in a refrigeration mode; controlling the air deflector to be closed or blow air upwards; controlling an electric heating device to be started; and controlling an inner fan to operate according to a preset rotating speed. According to the air conditioner control method and device, the electronic equipment and the air conditioner, in the refrigeration mode, the shutdown instruction is obtained, and the electric heating device is controlled to be started, so that the internal temperature of the air duct of the indoor unit is increased, condensate water or mildew is avoided, and the safety performance of the air conditioner is improved; by controlling the air deflector to be closed or blow air upwards, the situation that airflow is blown to a user, and the use experience is affected is avoided; and the inner fan is controlled to operate according to the preset rotating speed, the heat transfer efficiency in the air duct of the inner unit is improved, so that the temperature of the evaporator, the temperature of the electric heating device and the temperature of the inner fan can be increased, and the effect of removing condensate water or preventing condensate water from being generated is achieved.