Abstract: The anti-ablation properties of C/C composites can be improved effectively by the addition of refractory metal carbide, as is widely studied in recent years. This paper reviews recent studies on the modification and coating techniques of C/C composites with TaC that have been carried out in Central South University, including the process of resin /pitch impregnation containing Ta₂O₅ and in situ reaction under high temperature, the process of resin /pitch impregnation containing tantalum ethoxide and in situ reaction under high temperature, the addition of TaC in the braiding of carbon fiber preforms, TaC and SiC/TaC multi-interlayer modification technique of C/C composites prepared by chemical vapor infiltration, TaC and SiC/TaC refractory metal carbide coating on C/C composites prepared by chemical vapor deposition technique.