The Central Structural Ridge, a synsedimentary subaqueous uplift controlled by strike-slip movement in Huanghekou Sag, is an important hydrocarbon bearing zone in Bohai Sea area. It is characterized by inapparent altitude difference，frequent internal reliefchange and strong reservoir heterogeneity. The characteristicsof sandbody distribution and reservoir development of thirdmemberof Shahejie Formationinthisbelt are not clear yet. In this paper, weconductpalaeogeomorphologic reconstruction bycombining seismic and drilling data and subdivide the belt into east, west and south parts. We separated the ranges of southern and northern source areas through light and heavy mineral data. Through synthetic analysis, we build the tectonic-deposition-reservoir patterns which could guide the exploration effectively. During the depositionof the thirdmemberof Shahejie Formation, the east Ridge was relativelylow and played the role of the major sediment channel. The sediment could transport longdistance towards the south with high maturity. The fractures developing inside the particles due to following tectonic inversion highly improved the permeability and resulted in development high-quality reservoirs. The west Ridge was relatively high and located aside the major channel and deposited thin sandstones with thick mudstone showing poor reservoir quality. The south Ridge located in the intersecting zone between north and south sediments adjacent to the central high landform causing strong carbonate cementing in sandstones.