Abstract: According to the characteristics of soot pollution in open pit mine,an integration evaluation system composed of GIS and ES is developed. This EGIS software was configured with externally linkage architecture based on the common interface module,its user graphics interface was designed by VB.net program language and its kernel system module are tracer tools about GIS maps,development tools about ES knowledge base,query facilities about special laws and regulations and generation tools about environment assessment report.By establishing the database of an open-pit mine and its knowledge base about EIA of soot pollution,the author finished the EIA of this mine with the EGIS software presented by this paper.