Mute control method of mobile air conditioner and mobile air conditioner

The invention discloses a mute control method of a mobile air conditioner and the mobile air conditioner. When an ultra-mute mode entering instruction input by a user is received, an upper fan is controlled to operate in a low wind gear, a lower fan is controlled to operate in a high wind gear, noise produced by the upper fan is reduced firstly, indoor dry ball temperature and indoor relative humidity are detected, and whether the dry ball temperature and the air enthalpy simultaneously meet preset judgment tolerance or not is judged; and if so, the lower fan is controlled to operate at a lowwind gear, whether the lower fan needs to be controlled to switch gears or not is judged according to the temperature of a condenser after the lower fan operates for a period of time, if so, switchingis performed, and if not, the lower fan continues to operate for a second preset duration. According to the technical scheme, the contradiction between the noise requirement of a lower air duct and the reliability of a whole