Imidazole modified HZSM-5 zeolite was prepared using tetrapropylammoniuhydroxide as template and imidazole as additive by hydrothermal synthesis method. The samples were characterized by the methods of XRD, SEM, EDS, BET, TG and NH3-TPD. The results show that adding a small amount of imidazole can produce uniform and smaller HZSM-5 zeolite particles with higher acidity and perfect resistance to high temperature performance. The CuO-ZnO-Al2O3/imidazole-modified-HZSM-5 bifunctional catalyst was prepared by impregnation method and its catalytic activity for hydrogenation of carbon dioxide to dimethyl ether was investigated. Under reaction pressure at 3.0 MPa, space velocity (SV) at 1800 mL?gcat-1?h-1, volume ratio to CO2/H2 at 1 : 3, temperature at 270 癈, molar ratio to CuO/ZnO at 2 : 1 and weight ratio to CuO-ZnO-Al2O3/imidazole-modified-HZSM-5 at 2 : 1, the conversion of CO2 and selectivity of dimethyl ether can be reached to 46.5 % and 37.8 %, respectively.