Disclosed is a hydrogen production process which can produce hydrogen from a raw material mixture comprising at least a hydrocarbon and water through a reaction system for carrying out at least a steam reforming reaction in the presence of a reforming catalyst. In the process, a CuO single catalyst is used as the reforming catalyst. The raw material mixture may additionally comprise an oxygen, and the reaction system may be one which can achieve a partial oxidative reforming reaction and a steam reforming reaction in the presence of the reforming catalyst.
