TIAN SHIJU property type hotel project is located in stone forest area of Kunming.The digital model can be obtained combining with the contour map about the planning area by the GIS in the early stages of the project,which can be used to analysis the elevation,slope,aspect of slope,view shed,cut and fill of the site,hill shade and build the hydrology modeling about the site etc.All above make the analysis carry out in condition of comprehensive intuitive space model,which enhance the understanding of the project in planning decision and guarantee the analysis before design with a scientific rationality attitude.This method can get accurately data and guide effectively the next work about the project's planning and design.