Abstract: TiC-based cermets have been widely used in wear parts and cutting tools due to their excellent properties such as low density, high hardness, good high-temperature oxidation resistance and so on. Effect of binder content on the microstructure and mechanical properties of TiC-based cermets was investigated using X-ray diffraction, scanning electron microscopy observation, microhardness tests and transverse rupture strength tests. Results showed that when the binder content was 15wt%, the TiC-based cermet has best mechanical properties. The hardness, flexural strength and fracture toughness are 1668 HV, 1377MPa, 7.76MPa/mm1/2, respectively. Increasing binder content is beneficial to promote liquid sintering. However, when the binder content increased to 21wt%, the content of dissolved carbides in liquid increased, the mechanical properties decreased due to coarsened surrounding rims.