The present invention relates to a monolithic catalyst for the reforming reaction, using as an ingredient barrier of 1A ~ 5A group metal on a conventional catalyst particles according as more particularly configure the modified monolith catalysts for preventing carbon deposition that may occur during the reforming reaction, and It relates to improving the heat resistance for the reforming of a new structure capable of improving the durability and thermal deactivation of the catalyst due to deterioration monolithic catalysts.