Two kinds of coal liquid, the distilled fraction (270~340℃) (DF 5) of low temperature carbonization tar and the extracts by heptane (P M1 ) and THF/MET (P M7 ) from Chinese Pingshuo bituminous coal were studied using GC-MS and 13 C-NMR, and were compared with each other The results show that the compounds in DF 5 can be classified as paraffinic compounds and non-paraffinic compounds The average molecular weight of the paraffinic compounds (M PC =303 03) is as same as that of the extract PM 1 (M PM 1 =298 16), as well as their molecular weight distributions The statistical average molecular structural parameters of the non-paraffinic compounds, such as aromatic carbon f a and the structure unit number M SP , were similar to that of the extract PM