Abstract: Hydrogenation of CO2 via relay catalysis can prepare a range of fuels and chemicals and is an important means of achieving green chemistry. ZnxCe2-yZryO4 metal oxides were prepared by sol-gel, co-precipitation and hydrothermal methods and coupled with SAPO-34 molecular sieves prepared by hydrothermal method to form ZnxCe2-yZryO4/SAPO-34 bifunctional catalysts, and to study the performance of their CO2 hydrogenation for the preparation of lower olefins. This study focuses on the variation of the structure, surface oxygen vacancy concentration and hydrogenation capacity of the metal oxides ZnxCe2-yZryO4 by different preparation methods and their effects on the catalytic performance. The optimum reaction conditions were obtained by comparing the effects of different temperatures, pressures, coupling modes, mass ratios and air velocities on the catalytic performance. The results showed that the catalyst prepared by the sol-gel method at 350°C, 4 MPa, and 6000 ml/g/h exhibited excellent catalytic performance, with a CO2 conversion of 12.44%, a C2=-C4= selectivity of 78.47% in the hydrocarbon products, and a total carbon CO selectivity of only 36.23%. Based on this study, some theoretical insights have been provided for the preparation of high performance bifunctional catalysts for CO2 hydrogenation to lower olefins.