Shallow seismic exploration has been playing an increasingly important role in engineering geologial survey. With the high resolving ratio of the shear wave and the full exploring depth of the compression wave, we can improve the accuracy of seismic exploration. On the basis of model research and through detailed data processing, depth migration or time-to-depth transform, the authors transformed practical stack section to depth section. In the depth domain, a preferable effect of application was attained by using contrastive interpretation