Xylene isomerization method

The invention relates to the technical field of xylene isomerization, and discloses a xylene isomerization method. The method comprises the following steps: carrying out an isomerization reaction on a C8 aromatic hydrocarbon raw material and hydrogen in the presence of a xylene isomerization catalyst; the xylene isomerization catalyst comprises a composite carrier and metal platinum loaded on the composite carrier, and the content of the metal platinum is 0.02-0.5% by mass based on the total mass of the dry basis of the composite carrier; the composite carrier comprises aluminum oxide and a hydrogen type boron-containing ZSM-5 molecular sieve containing metal cations, and the metal cations are alkali metal cations of which the atomic number is not less than 19 and/or alkaline earth metal cations of which the atomic number is not less than 19. By adopting the method provided by the invention, the occurrence of disproportionation side reaction can be effectively reduced while relatively high xylene isomerizatio