Important results had been achieved in deep-formation exploration in Xujiaweizi Depression, but the difficult business of conglomerate of Member 4 of Yingcheng Formation in Xujiaweizi Depression, resulting in the low level of researching of the potential reservoir. In this paper, using Seismic sedimentology theory and advanced methods (phase convert,3d visualization, strata slicing, frequency decomposing, coherence and other technical methods which based on well-seismic tie) to studying conglomerate of Member 4 of Yingcheng Formation.Ultimately determined the main provenance from NNW, depicted the outline and internal structure of fan delta, which laid an important foundation for exploration and development for later. In practice, applicable conditions and notes are more clearly in the process of application of technical methods of Seismic sedimentology.