Abstract： Based on the geographic information system(GIS) and intelligent analysis，the integrated study of slope safety assessment and three-dimensional information system are performed with much attentions to the common and important objects of geotechnical slope. By utilizing the development tools of Visual C++，DirectX and database platform of Access and SQL Server，an integrated analysis software system，i. e.，intelligent geotechnical engineering information analysis system (IGIAS) with independent substratum and self-copyright，is developed，which has been distributed on the internet. The IGIAS development thought，implementation methods，structure and basic functions are introduced. Finally，based on the IGIAS，a case study related to three-dimensional visualization and hazard subzone by using evolutionary artificial neural network is presented. The results indicate that the developed software has a prospective future in geotechnical engineering.
