Abstract: In this paper the application of digital image processing technique to process digital elevation model data and remote sensing information combined with digital elevation model data is presented. The Principles of the techniques about shaded relief and synthetic stereo-pair viewing of images as well as their application in digital elevation model data processing are described. The methods of producing synthetic stereo and perspective-viewing of remote sensing images combined with digital elevation model data, which can increase the interpretability of remote sensing image, also are described in the paper.