Abstract: Sujiatun oilfield has the potential of rolling evaluation, in order to increase the economically mobilized reserves of the Sujiatun oilfield, the research on the rolling evaluation of Sujiatun oilfield has been carried out from the aspects of the formation mechanism of fault system and the relationship between fault combination, the relationship between sedimentary system and reservoir distribution, the law of oil and gas enrichment, the division of favorable facies belt and etc. The research results indicate that the Qujiatun fault grows continuously in the first and the second period of Yingcheng, and the subsidence center grows continuously. It is clear that Sujiatun sub sag was formed. The Sujiatun sub-salt has the laws of reservoir accumulation in near-source staging, sand-breaking transport, step-by-step filling, and differential enrichment. The lithologic facies belt of the forward fault front and the tectonic facies belt of the adjacent tidal front are rolling. Key areas and potential zones for exploration and reservoir evaluation, combined with various factors, selected two favorable target areas in the Sujiatun oilfield.