A light-receiving device comprises, on a substrate, a first light-receiving part for detecting light of a first wavelength range, and a second light-receiving part for detecting light of a second wavelength range. At least a part of incident light is transmitted through the first light-receiving part and then received by the second light-receiving part. The central wavelength of the first wavelength range is longer than the central wavelength of the second wavelength range, and the first light-receiving part is composed of an organic semiconductor having an absorption spectral maximum in the first wavelength range.