PROBLEM TO BE SOLVED: To provide a color vision prosthesis capable of easily and appropriately correcting achromatopsia.SOLUTION: A color vision prosthesis 100 includes: a visual object display section 11 that repeatedly performs a display of lighting, for each of visual objects with different colors, a plurality of visual objects painted in different colors for a fixed time and then putting the light off； an electroencephalographic signal acquisition section 12 that acquires brain waves of a user 1 when viewing each of the visual objects, as electric signals via a detection electrode 30 attached to the head of the user 1； a color weakness form identification section 13 that identifies a color weakness form representing a form of achromatopsia of the user 1 on the basis of the electric signals acquired by the electroencephalographic signal acquisition section 12； and a color vision prosthesis information generation section 14 that generates color vision prosthesis information for correcting the color vision of the user 1 on the basis of the color weakness form of the user 1 identified by the color weakness form identification section 13.
