Abstract: There are two marine structural layers on the Central Uplift of the South Yellow Sea Basin. They are separated by a mudstone detachment zone of Lower Silurian, the Gaojiabian Formation. The upper structural layer is relatively complex, where develop thrust folds and imbricate thrust faults. Multi-channel seismic data on the Central Uplift shows that the marine structural layer is widely developed, and its thickness varies in a pattern of thick -thin-thick from west to east. Faults are developed along the strike of E-W direction, dominated by the tectonic stress of compression and strike-slip. Three structural styles of compression, extension-twisting and compression-twisting have been discovered.