Silicon carbide (SiC) was first found by accident in 1891. It is one of the future ceramics with quite many interesting properties and absolutely wide applications. It has better mechanical and refractory properties than most metal materials. The melting point of SiC is as high as 2500℃. Silicon carbide could be applied in many fields including functional ceramics, refractory materials, abrasive, metallurgical raw material, and artificial jewelry. Although rough silicon carbide has been commercialization, the nano-sized SiC powders are still in research and study. It is no doubt that silicon carbide will play a significant role of human being development in the future.