Concerning the difficults in data management and organization of prefecturelevel meteorological database systems,a novel approach for architecture and design of meteorological database system is presented under the framework of standardization and normalization. The physical storage model and uniform interface specification of meteorological data are designed through the logical and physical classification of those data. In addition, to archive a uniform treating effect of meteorological data acquisition, transmission, storage, and backup, a data processing method is presented based on RabbitMQ and metadata technology, which enhances the flexibility and extensibility of meteorological data processing through the mapping relationship of message data and metadata. The system has been put into operation, which provides stable, efficient data support for meteorological data management and public service.