A method for manufacturing a color image pickup device including a pixel group in which a plurality of pixels each having a photoelectric conversion element and a color filter are arranged includes the steps of generating a random array pattern in which color filters of at least one color component are randomly arranged for an arbitrary pixel position, so that the occurrence frequency of color filters of a color component in a region having a predetermined size including the arbitrary pixel position is within a desired error range, generating a regular array pattern in which color filters of at least one color component are regularly arranged, and generating a color filter pattern by compositing in a regular manner the random array pattern generated in the random array generating step and the regular array pattern generated in the regular array generating step.