With the continuous deepening of oil and gas exploration in China, complex high- steep structural areas have increasingly become the focus of oil and gas exploration. The existing imaging methods cannot meet the imaging requirements of high- steep structures around wells. According to the principle of seismic interferometry, different wave field components of VSP data are separated, and different wave field components are mathematically calculated to generate interference gathers. The seismic interferometry can make the virtual observation system closer to the target area, improve the imaging resolution of the high- steep interface, and achieve high- precision imaging for the high- steep structure around the well.Methods:For the high- steep structure in the well, the seismic interferometry method is based on the source—receiver reciprocity theorem. The VSP data at different detection points are processed by correlation / convolution, and the virtual source data is reconstructed to obtain a virtual SWP seismic record with one detection point as the virtual source and the other detection point.Results: The perturbation theory is used to analyze the role of different wave field components in the interference process. Through the window function filter and seismic interference imaging method, the salt dome model is imaged and compared with the reverse- time migration imaging effect, and the high- precision imaging of the salt dome model is obtained.Conclusions: Using seismic interferometry, VSP wave field can be transformed into SWP wave field, which makes the observation system closer to the underground structure and realizes high- precision imaging of underground high- steep structures.