Abstract:At present, in the regional microclimate observation project, with the needs of social development, there are different themes of microclimate stations.Typical representatives are agrometeorology, traffic meteorology, air quality, Lake Ecological monitoring, etc.These microclimate stations generally consist of support foundation, power supply system, sensor combination, acquisition system, transmission module and application software.With the development of science and technology, these microclimate stations continue to adopt new technologies in hardware, and their structures and sensors are also evolving towards integration.But the application software has not been upgraded with the update of software development technology.Generally, it still stays in the old technology system. The software is not strong in function, poor in expansibility, and can not be compatible with other manufacturers"equipment. The data structure is also lack of standardization and unification.Aiming at the construction of application software for regional meteorological stations and the actual project situation, this paper puts forward an application software architecture design based on regional automatic meteorological observatories, which has reasonable structure, standardized function, unified data and strong compatibility, taking full advantage of the design patterns of layered design, software reuse and plug-in development.