Yttrium oxide, lanthanum oxide and cerium oxide modified SAPO-34 (M-SAPO-34，where M= Y 、La、Ce) were prepared by hydrothermal method, respectively. The samples were characterized by the methods of XRD, SEM, FT-IR, BET, NH3-TPD and TG. The results show that rare earths were added into SAPO-34 framework. They have higher specific surface area and smaller particles size, as well as the changes in the pore diameter and acidity. Bifunctional catalysts of CuO-ZnO-ZrO2/M-SAPO-34 were prepared by mechanically mixing M-SAPO-34 with CuO-ZnO-ZrO2 in the weight ratio of 1:1. Its catalytic activity for carbon dioxide hydrogenation to light olefins was investigated. Under the conditions of reaction temperature at 400℃, pressure at 3.0 MPa，space velocity (SV) of 1800 mL/(gcat •h)，CO2/H2 (molar ratio) of 1:3，bifunctional catalyst mass of 1.0g, CuO-ZnO-ZrO2/La-SAPO-34 exhibited better catalytic activity, the conversion of CO2 could reach to 49.7% with a light olefins selectivity and yield of 54.5% and 27.1%, respectively.