A series of Cr-Ce/H-MOR catalysts with different molar ratio of chromium to cerium were prepared by incipient wetness impregnation. The obtained catalysts were characterized by XRD, H2-TPR and NH3-TPD. The characterization results indicated that the chromium oxides and cerium oxides were introduced on the surface of H-MOR and the synthesized catalysts definitely possess proper acidity and redox property. The catalytic performance of obtained catalysts on degradation of trichloroethylene(TCE) were investigated on a continuous fixed bed reactor with GHSV of 15,000h-1. And 1Cr-1Ce/H-MOR sample showed best catalytic performance with the conversion of TCE of 90% at the reaction temperature of 279.4℃ and considerable stability of decreased activity of 9.2% after 400 min. The 1Cr-1Ce/H-MOR catalyst before and after reaction were further characterized by XRD, TG and XPS individually, the results showed that no carbon deposition and structural change were found. The decrease of the molar ratios of Cr6 and Ce3 and the adsorption of Cl species on the surface might be the main reasons for the decreased activity of the catalyst.