α-Aminoalkylation of sulfonylarenes with alkylamines was found to proceed successfully in the presence of a base in MeOH under photoirradiation, giving a wide variety of α-arylalkylamines. The reaction is initiated by photolysis of the S−Ar bond of sulfonylarenes leading to generation of α-aminoalkyl radicals, which get into a radical chain to give α-arylalkylamines.