The increasing number of residents causes an increase in the volume of waste, especially plastic waste. Pyrolysis is the process of breaking down complex polymer structures to become simpler through a thermal (heating burning) process without using oxygen. Liquid smoke can also mean the result of cooling and melting smoke from biomass material that is burned in a closed tube. This study aims to determine the processing of unused Ploypropyline plastic waste into alternative fuels by pyrolysis process. The pyrolysis process was carried out at the reactor for 5 hours with 500 grams of waste producing 160 mL. The results showed that the density of pyrolysis oil was 0,812 g/ml. The time needed to burn out an object is 5,28 minutes. Heating water using pyrolysis oil produces a temperature of 78oC at 5 minutes heating time with a volume of water lost (evaporating) of 4,8 ml. Of the four parameters that have been observed, the quality of pyrolysis oil is between premium oil and kerosene.