The vehicle interior lighting device

While preventing the driver feels cumbersome to provide a vehicle interior lighting system that can appropriately illuminate the vehicle interior. First illumination section for illuminating a first region of the cabin upper (A) a passenger compartment front (1), the second region of the cabin top a vehicle rear than the first region (A) ( second illumination section for illuminating the B) and (2), third illumination part a vehicle lower than the first region (a) to illuminate the cabin front portion of the third region (C) and (3), a first region fourth illumination unit for illuminating the fourth region (D) of the vehicle lower to a vehicle rear than (a) (4), the lighting controller (5), comprising a. By the lighting controller (5), during running of the vehicle, at least, relatively to vary the intensity of the illumination and the fourth illumination part of the first illumination unit (1) (4), or the second illumination unit (2) of illumination and was relatively different to configure the illuminance of the third illumination unit (3).