Abstract: CeO2-ZrO2-La2O3-Al2O3（CZLA）samples with different CeO2, ZrO2 and La2O3 contents were prepared by peptizing method. The CZLA samples were characterized by X-ray diffraction (XRD) and N2 adsorption-desorption. The low Pt-Rh content catalysts were prepared by using OSM（Ce0.4Zr0.4Y0.1La0.1O1.9）and CZLA samples as the support, and the catalytic performance was investigated. N2 adsorption-desorption results showed that CZLA sample with 2% La2O3 maintained a highest specific surface area of 97.10 m2?g-1 when aged at 1100℃ for 5 h. After calcination at 1000℃ for 5h, XRD results revealed that both CZLA samples were γ-alumina, lanthanum existed in a dispersed phase, while CZ existed as solid solution in alumina. Activity tests showed that the catalyst which supported by CZLA sample with 2% La2O3 showed an excellent catalytic performance. Its light-off temperature was 249oC, and full conversion temperature was 286oC for C3H8.