Disclosed is a method for producing an aromatic hydrocarbon stably for a long time while maintaining a high yield of the aromatic hydrocarbon when producing the aromatic hydrocarbon by subjecting a lower hydrocarbon to a catalytic reaction with a catalyst. The method comprises a reaction step in which a lower hydrocarbon is subjected to a catalytic reaction with a catalyst to obtain an aromatic hydrocarbon and a regeneration step in which the catalyst used in the reaction step is regenerated, and by repeating the reaction step and the regeneration step, the aromatic hydrocarbon is produced. In the reaction step, the yield of the aromatic hydrocarbon is calculated every time after a given period of time elapses. On the basis of the calculated yield, a yield to be used as a standard is set, and a regeneration time in the regeneration step is prolonged on the basis of a change in yield with respect to the standard. Further, a threshold for the change in yield is set, and when the change in yield of the aromatic hydrocarbon in the reaction step is lower than the threshold, the regeneration time in the regeneration step is prolonged.