Abstract: Effectiveness to the aspect of enrichment of oil and gas in deep basin of Bohai Bay basin is in the east of China is rich in oil and gas resources of large rift basin, the oil and gas resources has great potential and extensive distribution of high-quality marine hydrocarbon source rocks are marine strata in the material foundation, but specific to the meso Proterozoic effective hydrocarbon source rock distribution and hydrocarbon source rock distribution and hydrocarbon generation potential, oil and gas resources evaluation also need to be further identified, in urgent need of existing data and data base, to strengthen the layer system of research and understanding and evaluation of hydrocarbon source rocks and resource potential, to promote the Bohai Bay Basin, the deep oil and gas exploration and exploration decision-making provide important basis.