PURPOSE: To obtain a reinforced metallic sintered member in which whisker is disposed in one direction by kneading metallic powder, ceramic whisker and an organic binder, subjecting the kneader to extrusion molding, to debinder, thereafter to sintering and to consolidation by HIP treatment, etc.

CONSTITUTION: Metallic (alloy) powder having ≤50μm grain size, ceramic whisker and an organic binder are mixed and kneaded and is subjected ti extrusion molding into the shape which is fitted to the shape of final manufactures. The extrusion molded body is heated in a nonoxidizing atmosphere to remove the organic binder. The debindered body is sintered and subjected to HIP treatment, or after sintered, it is subjected to HIP treatment and is consolidated. By this method, the whisker reinforced metallic composite material in which about 90% of the total amounts of the ceramic whisker is oriented in one direction can be obtd.