Low concentration chlorine and hydrogen chloride were prepared through the catalytic oxidation of hydrogen chloride and oxygen. Then, the effects of chlorine concentration on the reaction rate and utilization ratio of chlorine for benzene chlorination to chlorobenzene over zeolite catalysts were investigated.The catalytic performance of chlorination of benzene among various H-type zeolites,such as HY, HZSM-5, and Hβ, and a rare earth metal modified Y-type zeolite ( REY ) with different pore structures and acidity were compared.These zeolite catalysts were characterized by BET,NH3 temperature programmed desorption ( NH3-TPD ) and pyridine adsorption Fourier-transform infrared ( Py-FT-IR ) . Results indicated that the chlorine concentration had little effects on the rate of benzene chlorination and utilization ratio of chlorine. The pore structure and acid type of zeolite catalysts were the key factors affecting the benzene conversion. Hβ zeolite,due to its three-dimensional special pores,appropriate acid strength and more Lewis acid ( L acid) sites,had better catalytic activity than HY and HZSM-5. Among the above-mentioned four zeolite catalysts,REY zeolite was the most efficient catalyst,which had enough L acid sites. When the chlorine mass concentration was 15％ and the reaction time was 3 h, the average formation rate of chlorobenzene was 8. 4 g/( g·h) over REY zeolite.