Using the pulsed current activated sintering method, the WC-10wt.% Co materials were densified using a WC and Co powder. The WC-Co almost completely dense with a relative density of up to 99.5 % after the simultaneous application of a pressure of 60 MPa and an electric current for 3 minutes almost without any significant change in the grain size. The average grain size of about $0.3{mu}m$. The hardness and fracture toughness at $1000^{circ}C$ were about $2200kg/mm^2$ and $9.8MPa.m^{1/2}$, respectively.