Ceria　zirconia　solid　solution　(CZ)　that　contained　BaSO4　was　prepared　by　using　coprecipitation　method　and　was　used　as　a　supporter　for　preparing　platinum　catalyst.　It　is　found　that　BaSO4　can　be　evenly　distributed　in　the　irregular　mesoporous　of　the　CZ.　Furthermore,　the　addition　of　BaSO4　to　the　CZ　is　able　to　improve　the　desorption　amount　of　sulfur　species　under　reducing　atmosphere,　which　could　decrease　the　accumulation　of　sulfur　species　in　the　catalyst.　Consequently,　sulfur　poisoning　resistance　of　the　catalyst　has　improved.　©　2012　Elsevier　B.V.