Provided is a vehicle air-conditioning device in which a lever (7) for turning a damper is rotatably fitted and supported on a unit casing (2), wherein one of a support part (13) on the unit casing (2) side and a fitting part (8) on the lever side is provided with an elastically deformable fitting claw (27), while the other of the support part (13) and the fitting part (8) is provided with a fitting hole (24), into which the fitting claw (27) is fitted and engaged, and a bearing boss part (23) and a fitting shaft part (25), which are rotatably fitted together with a bearing clearance between them, are provided on the outer periphery of the fitting claw (27) and the fitting hole (24).