The plate-like grain cemented carbides were prepared using W Co C (carbon black) as the raw materials. Effects of the morphologies of tungsten powders prepared by different raw materials on the flattening morphologies of W powders and the microstructures and properties of plate-like grain cemented carbides were researched. It showed that the morphologies of W powders prepared by blue tungsten oxides (BTO) were spherical polyhedron. However, the W powders prepared by yellow tungsten oxides (YTO) were polyhedral equiaxial, which were easier access to prepare plate-like tungsten powders by ball milling, and prepare plate-like grain WC-Co cemented carbides.