In order to adapt to the modernization of meteorological service and the needs of weather forecasting and agrometeorological researches， making use of VB 6.0 language， a Windowsbased meteorological data management system is built for Wuwei. The system design flow and ideas， the main technical features， and the functions of data storage and application are introduced in detail. With the system， the effective management of the historical meteorological data can be realized， and the way of data retrieval and statistic is improved. The system has become one of important tools in the operational services， being applicable and worth popularizing for countylevel meteorological stations.