Compared with general seismic techniques, VSP can remove noise effect more effectively and improve vertical resolution. Combining 3D seismic profile and core, the key layers are calibrated, their relations can be made definitely, and fine seismic attributes analyses is processed. Amore accurate geological model is set up and the reservoir heterogeneous can be made clearly by using VSP image. Taking Nanshanwan area for example, the thin sand of Putaohua oil layer can be recalibrated using VSP time-depth table, and its bottom can be interpreted accurately. The reservoir is predicted by several attributes analyses, and sedimentary facial map is established to put forward favorable exploration targets.