Cu/Ce_0.75Zr_0.25O₂ catalysts was prepared by urea co-precipitation with assistant of microwave. The activity and stability of the catalyst for ethanol dry gas reforming was studied. The result showed that the Cu/Ce_0.75Zr_0.25O₂ catalyst possessing high catalytic activity. The activity increased with the rising of the reaction temperature. The catalyst stayed stable under 750 ℃ during the 90-hour reaction process and the conversion factor of ethanol remained 100%.