Ti
3SiC
2 is a special ceramic material with hexagonal crystal structure. It has excellent properties of both metal and ceramic, such as high temperature strength, oxidation resistance and processability. It is widely used in wear-resistant lubricating materials. In this paper, the excellent properties and wide applications of Ti
3SiC
2 composites with metal, SiC, diamond, TiC or Al
2O
3 are reviewed, as well as their research directions.