To provide a metallic honeycomb base material for an exhaust gas cleaning catalytic converter having excellent oxidation resistance at high temperature, the durability of which can be improved at higher temperature even when a rare earth metal component, an alkaline-earth metal component, a group 4A metal component or a group 5A metal component is added to a catalyst layer and to provide the catalytic converter for cleaning exhaust gas.

The honeycomb base material for the exhaust gas cleaning catalytic converter having excellent oxidation resistance at high temperature is a metallic honeycomb base material obtained by fabricating stainless steel foil on the surface of which a film of a precursor is formed. This metallic honeycomb base material is used in the catalytic converter for cleaning exhaust gas.

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