Method for manufacturing an aromatic hydrocarbon, and transition-metal-containing crystalline metallosilicate catalyst used in said manufacturing method

Provided is a method for manufacturing an aromatic hydrocarbon, with high yield and efficiency, from a low hydrocarbon consisting primarily of methane. Said method is characterized by the inclusion of a step in which a low hydrocarbon consisting primarily of methane is catalytically reacted in the presence of a transition-metal-containing crystalline metallosilicate catalyst obtained by supporting 5 to 25 parts by weight of a transition metal (X) on a modified crystalline metallosilicate, per 100 parts by weight thereof. The modified crystalline metallosilicate is obtained by applying a series of treatments (A) to a crystalline metallosilicate, said series of treatments including a step (i) that eliminates some of the metal in the crystalline metallosilicate and a silylation step (ii).