Abstract: The application of chemical kinetic models in Huanghua Depression indicates that the botryococcus, organic mater (OM) reworked by microbe and soluble OM (non-hydrocarbon and asphatene) in the research region do begin to generate hydrocarbons in large amount at shallower buried depth relative to the normal threshold of oil generation. Combined with the distribution, thickness, and buried history of source rocks as well as their geochemical characteristics and feature of residue hydrocarbon, the quantitative evaluation shows that the amounts of hydrocarbon generation and expulsion for the 2nd member of Kongdian Formation are 3.45 billion tons and 3.19 billion tons respectively in the south region of Kondian,and that for the 1st member of Shahejie Formation are 1.34 and 0.94 billion tons respectively,the amounts of oil resource (including mature oil) of the 2nd member are 0.71 and 0.28 billion tons respectively. This means that the 2nd member of Kongdian Formation in south Kongdian will results the enrichment of oil accumulation of immature to low-mature oil, and the exploration potential related to the 1st member of Shahejie Formation is not negligible. These also suggest that it is both reliable and workable to evaluate the amount of generation and expulsion as well as the resource of immature to low-mature oil from the chemical kinetic theory.