In recent years,great achievements have been made in exploring oil and gas from Jurassic coal measure strata in China.Plentiful oil and gas have been discovered in some northwest coal basins of China.The exploration,development and studies of the oils from the coal greatly developed terrestrial oil generation theory.In this article,a new method by Qing Kuangzong was introduced,which adopted (13)C NMR spectrum to determine potential oil-generating carbon (Co),potential gas-generating carbon (Cg),and aromatic carbon to evaluate oil and gas-generating potential.A kind of primary migration model by stages for oil from coal was also presented in this article.