A series of Fe/Al-lap catalysts with mesoporous structure and high specific surface area were prepared. The structure, Chemical properties and the catalytic behaviors were studied detailed. Iron oxide mainly existed in the from of isolated Fe3+ in an oxidic environment. Moreover, Fe/Al-lap catalysts showed high catalytic activities in the temperature range of 120-200 due to the interaction between iron oxide and alumina, Which improve the redox propertry of Fe3+ efficiently.