The effect of different binders on light hydrocarbon aromatization performance of the HZSM-5 catalyst was investigated.Physicochemical properties of the catalysts,such as the specific surface area,pore volume and acidity,etc.,were characterized to correlate with their aromatization performance data.The results showed that the pore structure of Al_2O_3,could significantly affect the catalyst performance.As the accessible pore diameter of the catalyst increased from 8.0 nm to 9.0 nm,the light aromatics yield increased by 2.7 percentage points,while the operating time of the catalyst nearly doubled.In addition,catalysts prepared with SiO_2,and aluminum phosphate was more active and stable than that prepared with Al_2O_3,of which the light aromatics yield enhanced 6-8 percentage points and the run length,or seivice eife run length nearly doubled.