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This paper proposes a mobile terminal software design of the spectral sensing Internet of Things(IOT)based on Android system. It can realize data interaction and data processing functions between user and spectral sensing IOT. Three modules including user information, node information and data information. Using the ViewPager class to build a double-list interface to display node information, using the SOAP protocol to do the data interaction with the cloud server. The resulting spectral and environmental data can be displayed in the form of graphic and it can be saved in the phone. Furthermore, the software realizing spectral data processing function such as normalization, first-order and second-order differential, peak-finding. Environmental data including temperature, humidity, carbon dioxide concentration and light intensity data. It can display the latest environmental data in real time, and also can select time period to query and plot environmental data. After testing, the developed software runs stably and can realize the spectral sensing IOT mobile terminal software requirements.