Abstract: The application of three dimension laser scanning technology in Shuanglong Cave surveying is introduced. The study not only improves the accuracy and efficiency of cave surveying, but also provide data source for modeling three-dimensional visualization of interior topography of cave and the shape of geological body, for constructing of the virtual geographical environment of cave and the construction of geography information system of cave. It can provide intuitive and precision basic data for the data base of cave, the development of landscape tourism of cave, the protection of environment and landscape of cave and the cave archeology.