Abstract: Two zeolite catalysts, ZSM-5 and ultrastable Y-type (USY), were used in a two-staged fixed bed reactor to pyrolyze waste tyre. According to the analysis of the composition of the light oil (boiling point<160℃) from the pyrolysis/catalytic cracking of waste tyre, the concentrations of single ring aromatics were increased. For example, while the pyrolysis temperature, catalytic cracking temperature and catalyst/tyre ratio were 500℃, 400℃ and 0.5, respectively, the concentration of benzene was 0.15% for the pyrolysis oil, 0.99% for the ZSM-5 catalytic cracking oil and 1.89% for the USY catalytic cracking oil. And under this condition, the concentration of toluene was 3.04% for the pyrolysis oil, 5.68% for the ZSM-5 catalytic cracking oil and 17.70% for the USY catalytic cracking oil, respectively. This result is important for the process of extracting chemical materials from the pyrolysis of waste tyre.