PROBLEM TO BE SOLVED: To provide an electrode for a photolytic water decomposition reaction used for producing hydrogen efficiently and industrially advantageously which can remarkably increase a photolytic water decomposition reaction rate under light irradiation.SOLUTION: There is provided an electrode for a photolytic water decomposition reaction which is obtained by accumulating one or more selected from the group consisting of oxynitride, nitride, oxysulfide and sulfide as a photocatalyst constituting a photocatalyst particle (10) on a support (20) and has a semiconductor or good conductor (30) between the photocatalyst particles (10) and between the photocatalyst particle (10) and the support (20), wherein a semiconductor or good conductor is provided between the photocatalyst particles and between the photocatalyst particle and the support by coating and then heat-treating the photocatalyst particles and the support surface with a precursor of the semiconductor or the good conductor and the semiconduct
