Pyrolysis oil derived from sewage sludge is considered as one of the substitute of crude in the world confronting energy shortage. Before the utilization of pyrolysis oil in industry, comprehensive investigation of its physico-chemical characters is needed. Through detailed analyze of its fuel properties and other characters including metal content, solid content and stability, the pyrolysis could not used as No. 4 fuel before improving its fuel characters, decreasing its metal and solid content, and increasing its stability. The detailed analyze of the pyrolysis oil could provide basic data for the process and use of it in future.