In order to solve the problems encountered in meteorological data sharing and service integration to improve the efficiency of data flow in data processing, forecast producing and product releasing, the meteorological department of Ningbo adopted such programming languages as Java, C# and Delphi to develop the meteorological information bus based on messageoriented middleware technology. In terms of data sharing, the bus can ensure the unified update of data resources. With respect to service integration, it can effectively decouple a variety of applications in the service system and improve the information exchange and the function reuse of each service platform. The features of messageoriented middleware technology and ActiveMQ are described, and the key technologies such as framework design, message standard, and the use of message queue are elaborated. The application of the technology in meteorological service in Ningbo is used to demonstrate the advantages of the meteorological information bus in the field of service integration.