A method is provided that includes extrusion-molding a raw material composition containing ceramic powder and a binder to manufacture a coupled honeycomb molded body having a shape in which a plurality of pillar-shaped honeycomb molded bodies, each having a number of cells disposed in parallel with one another in a longitudinal direction with a cell wall therebetween, are integrated with one another by interposing a coupling portion. The method includes firing the coupled honeycomb molded body to manufacture a coupled honeycomb fired body, cutting the coupling portion to manufacture coupling-portion-cut honeycomb fired bodies, and binding a plurality of honeycomb fired bodies by interposing an adhesive layer, where at least one of the bound honeycomb fired bodies is a coupling-portion-cut honeycomb fired body.