The　work　mainly　reported　that　CeO2-ZrO2-La2O3　mixed　oxide　was　synthesized　by　deposition-precipitation　method　and　used　as　support　of　Rh　catalyst.　The　physicochemical　properties　of　the　resultant　CeO2-ZrO2-La2O3　mixed　oxides　were　characterized　by　X-ray　powder　diffraction　(XRD),　Vis-Raman,　N-2　adsorption,　transmission　electron　microscopy,　temperature-programmed　reduction,　and　oxygen　storage　capacity　and　the　catalytic　activities　of　Rh-loaded　CeO2-ZrO2-La2O3　catalysts　were　evaluated　by　the　reduction　reaction　of　NO　by　CO.　The　combination　of　XRD　and　Raman　results　demonstrates　that　the　resultant　CeO2-ZrO2-La2O3　mixed　oxides　have　a　mixed　phase　comprised　mainly　of　m-phase,　c-phase,　and　t-phase.　Compared　with　the　counterpart　prepared　by　co-precipitation　method,　Rh-loaded　CeO2-ZrO2-La2O3　catalysts　prepared　by　the　deposition-precipitation　method　exhibited　higher　heat　tolerance　and　better　catalytic　activity　for　the　reduction　of　NO　by　CO　as　well　as　more　uniform　and　discrete　nanoparticles.　The　structural　and　textural　characteristics　caused　by　synthesis　technique　and　the　high　dispersity　of　Rh　on　the　materials　are　dominant　contributors　to　the　improvement　of　catalytic　performance.