To provide a semiconductor light-emitting composite device which has high light-emitting efficiency and can easily control light-emitting colors by eliminating restrictions when light-emitting elements having a plurality of wavelengths are integrated.

This semiconductor light-emitting composite device has a first semiconductor element portion provided with a first semiconductor laminate structure and made of a first semiconductor material, and a second semiconductor element portion provided with a second semiconductor laminate structure and made of a second semiconductor material diffferent from the first semiconductor material. The first semiconductor element portion has a plurality of light-emitting regions outputting lights of wavelengths different from each other. The second semiconductor element portion has a plurality of light-emitting regions or a single light-emitting region for outputting lights having a wavelength different from that of the lights to be output from the light-emitting regions of the first semiconductor element portion. The light-emitting regions of the first semiconductor element portion are electrically connected to the light emitting regions or region of the second semiconductor element portion.