Abstract: This paper briefly introduces the basic concept of the digital elevation model (DEM), summarizes the recent progress in the DEM application in the study of tectonogeomorphic features and enumerates and discusses some case histories of applications of relevant DEM data and techniques in the analysis of typical geomorphic features and study of macro-tectonogeomorphic evolution. With the continuous development of the DEM theory and data precision, the integration of the DEM and its space analytic technique with the relevant approach to geoscience research is bound to provide a strong technical support to the quantification of the tectonogeomorphic study.