Catalytic combustion of benzene was carried out using TiO2 supported copper oxides. TiO2 catalysts were prepared by sol-gel method from the titanium isopropoxide. All catalysts were characterized by XRD, ESR and FT-Raman spectroscopy. The catalytic activity of CuOx/TiO2 catalysts according to preparation conditions was also examined. The major phase of all the prepared particles was anatase, while the rutile peak was observed above 700 ℃. From the ESR and FT-Raman results, the CuO dispersed on the TiO2 surface acts as an active site of CuOx/TiO2 catalysts on the oxidative decomposition of benzene. The catalytic activity was shown almost similar activity on benzene conversion regardless of R ratio. In addition, the CuOx supported on TiO2 calcined at 400 ℃ showed the highest activity and the conversion reached almost 100% at 270 ℃. The catalytic activity gradually increased with an increase of Cu loading on TiO2. When Cu loading reached 5.5 wt.%, the total conversion temperature was lowered to 300 ℃.