The　expression　of　electronic　map　was　analyzed　in　the　traditional　Internet　GIS　and　the　relevant　information　about　GIS　integrated　with　Flex-based　RIA　(Rich　Internet　Application)　was　described　in　this　paper.　In　addition,　a　new　expression　way　of　GIS　electronic　map　was　discussed　too.　The　page　mode　of　book　was　applied　to　Internet　GIS　to　show　the　current　multi-source　and　multi-type　of　electronic　map.　The　research　was　studied　mainly　from　the　aspects　of　the　structure　of　the　design,　data　source　management　and　the　expression　design,　etc.　Characteristics　and　some　application　ranges　about　the　GIS-EBook　were　also　listed.　A　practical　system　which　was　an　atlas,　was　developed　in　the　paper.　The　feasibility　and　correctness　of　the　proposed　method　was　verified　by　the　experimental　results.　©　2011　IEEE.