An air conditioning apparatus for a vehicle may include a cooling duct provided with a cooling duct inlet at a first end of the cooling duct, and a cooling duct indoor outlet and a cooling duct outdoor outlet at a second end cooling duct, and including an evaporation core disposed in the cooling duct, a heating duct provided with a heating duct inlet at a first end of the heating duct, and a heating duct indoor outlet and a heating duct outdoor outlet at a second end of the heating duct, and including a condenser disposed in the heating duct, and an overlapping duct provided by overlapping the cooling duct with the heating duct, the evaporation core and the condenser being disposed respectively at an upstream and a downstream of an air flow, and the evaporation core and the condenser may be connected with each other on one refrigerant passage.