The characteristics of poly(vinyl chloride)(PVC) pyrolysis has been studied by using thermogravimetry(TG), gas chromatograph-mass spectrometry(GC-MS) and fourier transform infrared spectroscope(FT-IR) under various heating rates and residence times. The yield of pyrolytic oil and the content of heavy oil increases as the heating rate decreases. As the heating rate increases, an increasing tendency of the yield of BTX and low molecular weight materials is observed. The recovered oil products are mainly composed of BTX, indane, indene, naphthalene and anthracene. As the residence time increases, the yield of oil increases because gas phase products such as ethylene and butadiene are combined by the Diels-Alder reaction.