Air-conditioning system for vehicle and control method thereof

An air-conditioning system (A1) for a vehicle and an air-conditioning system (A2) for a battery, according to the present invention, can be made compact and can enhance the comfort level of heating and properly control the temperature of a battery by delivering air cooled through a first evaporator (400) of a heating/cooling module (D1), or air heated through a condenser (200), to a supply side (toward a passenger or a battery). In this case, the heating/cooling module (D1) comprises: a compressor (100) that suctions and compresses a refrigerant; the condenser (200) that condenses the refrigerant that is compressed in the compressor (100); an expansion means (300) that controls the flow of the refrigerant that is condensed in the condenser (200); the first evaporator (400) that evaporates the refrigerant that is supplied through the expansion means (300); a (1-1)th blowing unit (500) that blows out air such that the air is cooled while passing through the first evaporator (400); a (1-2)th blowing unit (600) that blows out air such that the air is heated while passing through the condenser (200); and a delivery duct (700) for delivering, toward a passenger, the air that is selectively supplied by an opening/closing means (800) through the (1-1)th blowing unit (500) and the (1-2)th blowing unit 600).