The process of conversion of light alkanes into aromatic hydrocarbons on zeolite catalysts, modified with Zn, La, Fe and Zr was investigated in this work. The catalysts were tested in the conversion process of propane-butane and propane-propylene mixtures at atmospheric pressure, variation of temperature and space velocity (SV). It is observed that the maximum amount of aromatic hydrocarbons (34.6%) are formed in the conversion of propane-butane mixture over Zn-La-Fe-ZSMAl 2 O 3 catalyst at 550 o C, selectivity to aromatic hydrocarbons is 39,2%.