立足于通过利用目前计算机界较流行的中间件技术( middleware)来解决以往GIS开发工具由于其不灵活的开发方式及昂贵的代价所造成的问题，介绍了中间件技术原理，并以宜昌市黄柏河流域和东风渠灌区水资源管理系统（Yichang Hu angbohe valley and Dongfeng irrigation region water resource administration syst   em,简称YHV-DIRWRAS）的设计和实现为例，介绍了应用中间件技术的GIS（地理信息系统）的研究与实践。中间件技术在YHV?DIRWRAS系统实践中的成功应用，证明了使用中间件技术 进行GIS的开发能提高应用软件开发效率及加强系统集成性，尤其是异构系统之间互连互通。该技术在各个行业都有着广阔的应用前景。

This paper intends to apply the middleware technology to resolve the problems of inflexible development mode  and expensive cost in the past GIS development tools, and introduces the principle of middleware technology, as well as  the software and design of the Yichang Huangbohe valley and Dongfeng irrigation region water resources administration system (YHV - DIRWRAS). The successful application of middleware technology in the Y   HV - DIRWRAS proves that the middleware technology can make software development more effective, and strengthen the integration of system, especially in the communication systems with different structures. The middleware technology has vast application foreground in all professions.