This paper reviews 3D GIS's characters and related software development, discusses its some basic problems such as data acquisition, 3D data storage and handling, 3D spatial analysis, etc. and points out that on one hand currently 3D GIS's development is restricted by inefficient 3D data model and data structure, difficulties of 3D data acquisition, large amount 3D data procession and storage, and 3D spatial analysis, on the other hand, 3D GIS can be facilitated by mature Visualization of Scientific Computa...