Acinetobacter junii POH was formed the yellow color colony on agar plate containing phenol as a vapor phase and grew well in a liquid minimal medium. the optimal concentration for phenol-biodegrading was 1000ppm. Acinetobacter junii POH was capable of growing on aromatic compound such as benzene, phenol, m-cresol, p-cresol, p-xylene and toluene but did not grow on o-cresol. With this strain, catachol was degraded through almost meta-cleavage pathway.