Vehicle interior illumination structure

f f f p p fp f Disclosed is a vehicle interior illumination structure comprising, in combination, an instrument panel installed in a front interior area of a vehicle, and a light-guiding illumination member disposed in the instrument panel. The instrument panel is formed with a step portion S laterally extending at a height approximately equal to or above that of a mounting portion of a shaft of a steering wheel to the instrument panel. The step portion S is defined in such a manner that a step upper surface located on the upper side of the step portion and a step lower surface located on the lower side of the step portion are formed in the instrument panel , and the step upper surface has a rear edge protruding in the rearward direction of the vehicle relative to a front edge of the step lower surface . The illumination member is arranged to extend laterally at a position which is adjacent to the front edge of the step lower surface and capable of preventing illumination light of the illumination member from directly coming within the field of view of a driver sitting in a front seat in the vehicle interior. The vehicle interior illumination structure of the present invention can prevent illumination light of the illumination member from obstructing the driver's view.