Abstract: Theoretical thermodynamic data of TiC_0.5O_0.5 production by carbon thermal reduction were calculated by thermodynamic software combined with the latest technology research progresses. The processes of TiO₂ reduction with graphite,carbon black,and petroleum coke were tested by DSC-TG,and titanium soluble anodes prepared with different carbonaceous reducing agent were analyzed by XRD and SEM. The results show that Gibbs free energy and temperature of the solid solution TiC_0.5O_0.5 meet the relation of ΔG=385 418-262.1 T,and high temperature and low vacuum are beneficial for preparing solid solution TiC_0.5O_0.5. The processes of TiO₂ reduction with graphite and carbon black are similar,but different from that with petroleum coke. The initial temperature of solid solution TiC_0.5O_0.5 preparation with graphite is lower than those of the other two carbonaceous reducing agents. TiC_0.5O_0.5 can be acquired by graphite and carbon black reduction,but the reaction of petroleum coke is incomplete,and solution particles prepared with graphite are homogeneous.