By optimizing formulation and fabrication methods, a new binder for plasticizing powder extrusion molding of hard metal, with excellent integrated properties and uniform distribution characters, has been developed. Thermal debond-ing mechanism and the extruding rheological behaviours have been studied. The technology of fabrication of binder and thermal debonding process have also been investigated. Using the novel binder, the hard-metal extrusion-molding rods with diameter up to 25mm, have been manufactured. By optimizing formulation and fabrication methods, a new binder for plasticizing powder extrusion molding of hard metal, with excellent integrated properties and uniform distribution characters, has been developed. Thermal debond-ing mechanism and the extruding rheological behaviors have been studied. The technology of fabrication of the binder and thermal debonding process have also been investigated. Using the novel binder, the hard-metal extrusion-molding rods with diameters up to 25mm, have been manufactured.