Abstract: In Geolord-AT three-dimensional triangulation process, artificial factors, complexity of surface feature, vegetation and so on cause the encrypted dot rude difference. And the large-area forest land，sands，river system and other factors cause the problem of broken link and cutting off of air or shipping line. This has already become the bottleneck for the extension as well as improvement of accuracy and speed of full digital photographic surveying system. The paper introduced some processing of problems in the Geolord-AT three-dimensional triangulation of alpine region in Danba measures district.