The analysis and application system of regional meteorological observation data developed by the Pu’er municipal meteorological service are introduced. The software was constructed as a Client/Server framework, using the Microsoft SQL_server Database to store observation data. Based on the integrated technologies of Microsoft Visual Basic and Mapinfo Mapx activeX, an application platform was constructed. The integrated functional modules are able to display, inquire, analyze, and process various meteorological data, such as contour line drawing for meteorological elements, weather radar echo displaying, and audible or animated graphic alarming. The major functions and working principles of the system are introduced, and its application effects in meteorological services are described.