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The existing China Weather Radar Standard Format Base Data analysis tools lack sufficient generality and abstraction in design, which is not convenient for radar data analysis and processing. In order to solve this problem, this paper designs and builds the China Weather Radar Base Data Model based on Unidata’s CDM (Common Data Model) and realizes the access to the Weather Radar Standard Format Base Data at the data model level. Based on the open-source Unidata’s NetCDF Java library and IDV visualization software, a set of Weather Radar Standard Format Base Data content extraction and visual analysis tools based on CDM are formed. As a valuable case, the comparisons of the new and old basic reflectivity data of Guangzhou radar for the evaluation of Doppler Weather Radar Standard Format Base Data are discussed, addressing a significant example. It shows that our researches facilitate the use and promote the operational application of Radar Standard Format Base Data. The research results can also be applied to the operational and scientific research related to Radar Base Data processing and analysis and provide basic support for the application of radar data.