To provide a lighting device with improved freedom of shape and material of a resin part and increase in cost restrained, and capable of achieving improvement in both optical characteristics and physical characteristics.

A light source substrate unit 1 is provided with a plurality of LED chips 2, and a base material 10 having a plurality of concave parts 10a mounting the LED chips 2. The base material 10 includes a first resin part 11 formed by injection-molding of a first resin and a second resin part 12 formed by injection-molding of a second resin. The first resin part 11 and the second resin part 12 have mutually different optical characteristics, and at least a part of an inner face of each concave part 10a is formed of the second resin part 12.