Preparation method of high regularity mesoporous molecular sieve Fe-MCM-41

The invention provides a preparation method of a high regularity mesoporous molecular sieve Fe-MCM-41. The preparation method is characterized in that an aftertreatment for a Si-MCM-41 matrix is carryed out to make the Si-MCM-41 matrix have an interaction with at least one soluble ferric salt to introduce a hetero atom Fe into the Si-MCM-41 matrix without any influence for a structure of the Si-MCM-41 matrix and thus a high regularity mesoporous molecular sieve Fe-MCM-41 is synthesized. The high regularity mesoporous molecular sieve Fe-MCM-41 has the advantages of uniform aperture sizes, big specific surface area and aperture volume, and favorable thermostability.