SOTER as the combination of soil, landform and lithology contains more information than single soil or landform database. SOTER can provide more robust supports for the solution of the increasing contradictions between human and natural resources. This paper described a procedure to delineate SOTER Terrain Units on 1:1 M scale of China by using new data (SRTM) and new digital soil mapping technology. The results showed that the procedure was suitable to delineate SOTER Terrain Units on 1:1 M scale of China based on SRTM with 90 meter resolution. Compared with the traditional methods, the procedure can realize seamless edge match, get more accurate, consistent and faster results, meanwhile it can provide a quantitative methodology to delineate SOTER Terrain Units on small scales, which is very important to realize the effective management of agriculture and environmental resources.