Abstract: The aromatization of i-butane over light hydrocarbon aromatization catalyst was investigated using pure i-butane and LPG rich in i-butane from C4 aromatization unit as feed respectively. The effect of reaction temperature, reaction pressure and space velocity on the conversion of i-butane was studied. Results showed that with LPG rich in i-butane as feed, under the conditions of a WHSV of 0.5 h-1, a reaction temperature of 400℃and a reaction pressure of 1.0 MPa, the yield of propane, gasoline fraction and dry gas plus loss was 60.05％, 11.57％ and less than 3％, respectively. The propane can be used as feed of ethylene cracking, and the produced gasoline fraction is a high octane gasoline blending component.