A vehicle air conditioner provided with an airflow structure for an intake box, wherein, in an HVAC comprising, in an intake box, a control device for controlling the number of rotation, the control device is reliably cooled by airflow regardless of the ratio of mixing between internal air and external air. A vehicle air conditioner of center-concentrated type, wherein a control device (6) for controlling the number of rotation is mounted to a vehicle interior-side wall surface inside an intake box (2) and wherein an air delivery guide (22) is provided in the intake box (2), the air delivery guide (22) delivering to the control device (6) a part of air introduced from a direction crossing the direction of opening of a suction opening (7) of a blower (8).