The embodiment of the invention provides an air conditioner system and relates to the technical field of air conditioners. The air conditioner system is used for achieving non-cooling dehumidification. The air conditioner system comprises an indoor unit, an outdoor unit and a controller. The outdoor unit comprises a compressor, a condenser and a first fan used for improving the heat exchange efficiency of the condenser. The indoor unit comprises a first evaporator, a second evaporator, a second fan used for improving the heat exchange efficiency of the first evaporator, a third fan used for improving the heat exchange efficiency of the second evaporator and a first throttling element. The condenser, the first evaporator, the first throttling element and the second evaporator are sequentially connected between an air exhaust outlet of the compressor and an air inlet of the compressor. The controller is connected with the first fan, the second fan, the third fan and the first throttling element. The controller controls the rotation speed of the first fan and the rotation speed of the second fan so that the first evaporator can achieve heating. The controller controls the rotation speed of the third fan and the opening degree of the first throttling element so that the second evaporator can achieve dehumidification.