Abstract:In the big data environment,meteorological archives data faces the problems such as complex data sources,insecure data quality and ineffective data application.According to the characteristics of metadata,this paper designs the metadata of meteorological archive data from the perspective of archive data management and application.Taking the original format of base data metadata for meteorological Doppler radar as an example,the metadata description process is described in detail.This paper discusses the construction method of metadata base and metadata knowledge map,and its role in meteorological archive data management and application service.The aim is to provide reference for the management and application of current meteorological archives data.