It is widely known that the nitrogen contained cermet has been used commercially for cutting tool material because of its excellent creep strength, though the cermet has many faults such as the appearance of pores in the structure, lacking of uniformity of mechanical properties, etc. Then, the study on, creep strength of nitrogen free cermet was made in relation to different factors to find out a high creep strength almost the same as that of nitrogen contained one. It was made clear that the nitrogen contained cermet could be replaced by the nitorgen free one having low carbon, fine grain size and adequate amount of Mo₂C at a fixed binder content.