A Series of catalysts, NiO/CeO2-ZrO2/WO3, for acid catalysis was prepared by precipitation and impregnation methods. The characterization of the prepared catalysts was preformed by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transforms infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), and surface area measurements. For the NiO/CeO2-ZrO2/WO3 samples, no diffraction lines of nickel oxide were observed up to 40 wt%, indicating good dispersion of nickel oxide on the catalyst surface. The hexagonal and monoclinic phases of WO3 were observed when using calcination temperatures up to 500℃, whereas the hexagonal phase of WO3 was transformed completely into a monoclinic phase of WO3 at 600℃ and above. The role of CeO2 in the catalyst was to form a thermally stable solid solution with zirconia and, consequently, to give high surface area and acidity. The catalytic activities for 2-propanol dehydration and cumene dealkylation correlated with the acidity of the catalysts measured by the ammonia chemisorption method. 20~25- NiO/5-CeO2-ZrO2/15-WO3, containing 20~25 wt% NiO, 15 wt% WO3, and 5 mol% CeO2 and calcined at 400℃, exhibited the maximum catalytic activity because of the effects of WO3 modifying and CeO2 doping.