Abstract: The beneficial exploration and development of deep shale gas requires seismic technology to implement the "sweet spot" area, in which it fractures easily for high production and has targeted the special demands for the imaging quality and information abundance of seismic data.First, high-quality imaging of faults, fault depressions, and low-order faults that are closely related to the structural preservation and evaluation of shale gas must be achieved.Second, high-quality, high-precision, and high information abundance pre-stack 5D seismic imaging data for the "sweet-spot" prediction of deep shale gas fracturing must be achieved.Driven by the key requirements of seismic data for the benefit exploration of deep shale gas in the Sichuan Basin, this study focused on seismic technology progress, including the design of geological target-oriented 3D geometry, processing of prestack full-azimuth information preservation, and its application in the DX target region of the Qijiang high-steep structural belt.Geological target-oriented 3D geometry utilizes multidimensional lighting and seismic data degradation processing to design an optimal observation system that meets the needs of geological target detection based on 3D surface and subsurface geological and seismic forward modeling.The prestack full-azimuth information preservation process integrates mountain seismic data regularization and image correction for time differences during the prestack migration processing to obtain prestack 5D seismic imaging data that fully retain offset and azimuth information based on the division of data with an offset vector tile (OVT).In the DX target area, 3D high-precision seismic acquisition of wide azimuth (full azimuth), high fold, and strong coupling with symmetrical and uniform sampling of shot and receiving points and OVT full-azimuth processing were applied, which can realize the full acquisition and retention of prestack azimuth-offset seismic information of deep shale gas geological targets to provide seismic imaging data with high quality, accuracy, and information abundance for structural preservation evaluation, design, and control of horizontal well trajectory, and fracturing prediction of deep shale gas.