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.