Physicochemical properties of the pyrolyzates obtained from carbonization of lignocellulosic biomass, such as bamboo, oak, and pine wood, were analyzed. The results revealed that the specific gravity, color values of L* and a*, and degree Brix may be useful factors for quality estimation of these pyrolyzates. The pH and organic acid content correlated poorly because of a complex effect among the various pyrolyzate components. The chemical composition of the pyrolyzates was estimated by gas chromatography. Fifteen of the major pyrolyzate components were identified, of which acetic acid was the major component. The bamboo pyrolyzate contained a higher organic content (4.82 %) than the oak (1.53 %) and pine (0.89 %) wood pyrolyzates. No significant difference was found in the chemical compositions and quantities of the phenolic and neutral compounds of the oak and pine wood pyrolyzates, but the acetic acid content of the oak wood pyrolyzate (1.06 %) was higher than that of the pine wood pyrolyzate (0.40 %).