Pyrolysis is one of the potential routes to harmless energy and useful chemicals from biomass. The pyrolysis of Albizia amara was studied for determining the main characteristics and quantities of liquid products. Particular investigated process variables were temperature from 350 to 550 degrees C, particle size from 0.6 to 1.25 mm, and heating rate from 10 to 30 degrees C/min. The maximum bio-oil yield of 48.5 wt% at the pyrolysis temperature of 450 degrees C was obtained at the particle size of 1.0 mm and at the heating rate of 30 degrees C/min. The bio-oil product was analyzed for physical, elemental, and chemical composition using Fourier transform infrared spectroscopy and gas chromatography spectroscopy. The bio-oil contains mostly phenols, alkanes, alkenes, saturated fatty acids and their derivatives. According to the experimental results, the pyrolysis bio-oil can be used as low-grade fuel having heating value of 18.63 MJ/kg and feedstock for chemical industries.