A series of solvents is suggested for studying the dissolution mechanism of the fulvic acid from Gongxian weathered coal.It has been found that the solubilities of the fulvic acid in different organic solvents depend mainly on the solvent's parameter δ_a,which represents the hydrogen bonding ability of the solvem i.e.the solubility of the coal fulvie acid increases with the δ_a value of the solvent.These fractions separated by various solvents have been ehararcterized by elemental and functional group analyses.1R.a.nd ¹³C NMR.The results show that the regular changes of aromatioity and quinonoie contents in different fractions a.re in agreement with the proposed dissolution mechanism in which tho formation of hydrogen bonding is regarded as the leading factor in di}sulution.