摘要：Many Internet-GIS have been implemented on the web and they are increasingly becoming an important part of multimedia cartography that has much more users as compared to traditional GIS production *** GIS technology has provided the GIS dynamic information acquisition with technical ***,the visualization technology of electronic map has provided tools for GIS symbols with dynamic *** the basis of GIS dynamic information acquisition,the design idea and implementation methods of dynamic symbols in dynamic GIS are presented in this article.