To provide a lighting device, capable of raising visibility in the vicinity of a visual field by attaining illumination, taking into the consideration the differences in the visibility characteristics between a center part and a peripheral part of the visual field.

In the lighting device, a lighting fixture 3 is arranged at an upper end of a support 3, erected at a side part of a roadway 1 side on a sidewalk 2. An inclined first arrangement surface 14 in a direction facing to the roadway 1 from the sidewalk 2 and an inclined second arrangement surface 15, in a direction facing to the sidewalk 2 from the roadway 1 are formed on an inner peripheral surface of the lighting fixture 3. Light-emitting diodes 111, 112 are, respectively arranged on the first arrangement surface 14 and the second arrangement surface 15. The light color of the light-emitting diodes 111, 112 is set up so as to make the S/P ratio as the ratio of scotopic luminance to photopic luminance required for the light-emitting diode 112 to be larger than that of the light-emitting diode 111.