Abstract: The effects of different methods mechanism on microstructure and properties of WC-based cemented carbide tool materials prepared by vacuum sintering were studied. The results show that Ni-Ti replacing Ni as binder could improve the hardness and bending strength of the tool materials, the wear of flank surface reduced greatly. Adding nano-SiCp made the microstructure of the cemented carbide tool materials more homogeneous, and the density, hardness, compression strength, and wear-resistance be further improved. The hardness of the tool materials was enhanced because Co had better wettability with WC surface than Ni as binder, and electoless plating cladding Co on WC surface increased the overall performance of the tool materials.