To provide a method of manufacturing a metallic catalyst carrier which can accommodate a honeycomb by diametrally reducing it equally and forcing it into a sleeve successfully.

The method of manufacturing the metallic catalyst carrier 1 comprising first forming a rolled honeycomb 2 by winding a wavy metallic foil 4 and a flat plate-like metallic foil 5 superposed on each other, in multi-layer fashion, and then forcing the honeycomb 2 into the sleeve 3 includes pressurizing the outer circumference of the honeycomb 2 in the diametral direction by split molds of a plural splits type 31 to 34 which each have a protuberance 2a formed on the inner surface, into a serration form, and then forcing the honeycomb 2 into the sleeve 3.