The establishment of digital terrain is the foundation of realizing intelligent embankment.Based on the problems of difficulty and longevity in the establishment of digital terrain of intelligent embankment project,quick methods of achieving the digital terrain data based on the GE and obtaining the refined digital terrain data according to the 2D drawings based on the GIS are proposed.The quick access method of the DEM was established by TIN-modeling theory and visualization technology based on the GIS.Digital terrain with different precision was established by means of ArcGIS and 91 satpic assistant.Furthermore,based on the embankment engineering in the main stream Tangyuan area of the Songhua River,the digital terrain system was established,which proved the reliability and practicability of the method proposed in this paper.