In order to meet the realtime share demand of meteorological data in Jiangsu Province after the establishment of the new data transmission process, based on message middleware technology, this study designs and realizes a provincial meteorological data synchronization system. The overall architecture and implementation of the data synchronization system are put forward; the database tables and news model are designed based on the operational needs and a data synchronization state information query web page is developed. At present, the system has been deployed in various cities across the province, providing stable, timely and effective data support for the meteorological service of provincial, municipal, and county levels.