Strike-slip faults are the most important faulted structural elements in Lundong slope zone.The characteristics, genesis and petroleum geological significance of strike-slip fault in the study area were studied base on the latest 3D seismic data. The result shows that strike-slip faults have the characteristics of abundant appearance, conjugate and en echelon structure in the horizontal sections, and there developed strike-slip faults with very steep section, flower structure, dolphin effect phenomena and ribbon effect phenomena in the vertical sections.