Heating　reflux　aging　technology　was　applied　to　prepare　a　series　of　CexZr1-xO2　(0.25　＜=　x　＜=　1)　solid　solution.　T　effects　of　the　CexZr1-xO2　composition　on　the　structure　and　oxygen　storage　capacity　were　characterized　using　N-2　physical　adsorption,　X-ray　diffraction　(XRD),　FT-Raman,　UV-Vis　diffuse　spectroscopy　techniques.　The　texture,　structure　and　thermal　stability　of　ceria-zirconia　mixed　oxides　are　closely　related　to　the　ratio　of　cerium　to　zirconium　in　the　solid　solution,　with　increasing　the　zirconium　content,　the　specific　area　increases,　and　the　structure　undergoes　a　change　of　order-disorder-order.　Among　them,　Ce0.4Zr0.602　sample　possesses　the　maximum　OSC　and　Ce-0.25　Zr-0.7502　sample　possesses　the　best　thermal　stability.