A light source module including a substrate, a plurality of light source, and a first three-dimensional optical control structure is provided. The substrate includes a periphery region and a middle region. The plurality of light sources is disposed on the substrate. The first three-dimensional optical control structure is located in the periphery region of the substrate and located above the plurality of light sources. The first three-dimensional optical control structure covers one of the plurality of light sources. The light generated by the light sources passes through the first three-dimensional optical control structure and is emitted out. The first three-dimensional optical control structure has an asymmetrical shape.