Higher feedstock/solvent ratios resulted in lower yields of biooil. With increasing reaction temperature and solvent filling ratio,the bio-oil yields increased firstly and then decreased. In comparison with other tested catalysts (Na2CO3, FeS and FeSO4), NaOH was verified as an ideal catalyst for liquefaction of rick husk in ethanol.The rational dosage of NaOH was about 10%. The solid products were carbonized to a certain extent. The bio-oils were mainly constituted of phenolic compounds, long-chain alkanes and esters.Adopting ethanol as the liquefaction solvent appeared to promote the formation of long-chain alkanes and esters. In addition, the alkane formation was further enhanced by the NaOH catalyst.