A heating device for off-vehicle information acquisition means, which has high heating efficiency, which is thin, and which has a high degree of freedom for layout of a heating element is provided.
A heating device (100), which is arranged inside a vehicle, heats a window glass portion (Wa) located in an information acquisition path (5) of an off-vehicle information acquisition means (50) for acquiring information outside the vehicle. The heating device (100) comprises a hood (10) provided inside the vehicle below the information acquisition path (5) of the off-vehicle information acquisition means (50) and a heating element (20) provided on the surface of the hood (10) or inside the hood (10) and having a PTC heater layer (21).