We have previously presented a new coal extraction method which brings coal into contact with a flowing stream of non-polar solvent such as tetralin or 1-methylnaphthalene under 10MPa at 350℃. Furthermore, we presented a new coal fractionation method based on the extraction method and showed that bituminous coals could be separated into several fractions having different molecular mass without decomposing coal. When the fractionation method was applied to the fractionation of brown coal, however, properties of the fractions obtained were almost the same. This suggested that thermal extraction does not work for the fractionation of brown coal. In this study we present a solvent fractionation method instead of the thermal fractionation as a way to fractionate brown coal extract into fractions having different properties. Solid extracts prepared through hydrothermal extraction at 300 and 350℃ were separated by the solvent fractionation using n-hexane, cyclohexane, toluene, and methanol. Detailed characterization of the fractions obtained showed that the brown coal extract could successfully be separated into fractions having significantly different chemical structures.