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The visualization of meteorological service will directly influence the quality and effectiveness of the service. According to the characteristics and requirements of county level meteorological service，by means of VB.NET as the major programming languages on the .NET platform, a comprehensive service system for meteorological operation based on the three dimensional Geographic Information System (3D GIS) was built by using the techniques of the second development tool of the ArcGIS Explorer API and the standards of the Open Geospatial Consortium Keyhole Markup Language (OGC KML). The comprehensive service system has the capability to display, process and analyze variou kinds of meteorological elements in the 3D GIS background. The system can provide a vast amount of basic geographic information from the ERSI’s Digital Earth, which leads to the application of the 3D GIS information in the comprehensive service system for meteorological operation.