FIELD: catalysts of high selective production of alkyl aromatic hydrocarbons and methods for their production. SUBSTANCE: catalyst comprises, mas. %: zeolite in its decationated form, 66-72; silicium dioxide (as binder material), 22-24; phosphorous pentoxide, 4.1-11.5. Phosphorous pentoxide is added at treatment of zeolite (which is granulated with silicium dioxide) by aqueous solution of ammonium phosphate, the process is followed by drying and calcination of catalyst. EFFECT: increased duration of uninterrupted catalyst flow up to 1000 h while retaining both conversion of benzene and propylene at high level; increased selectivity in respect with desired product. 4 cl, 1 tbl
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