Abstract: The development of Agricultural Monitoring and Early-warning (AMEW) brings about the requirements for data. According to international experience and China’s agricultural situation, this study defined the types of data, acquisition methods and application for AMEW, as well as solved the data requirement analysis. The innovation is based on the connotation of AMEW and the research of business logic and not only historical data was used but also real-time data we draw the conclusion and finish its verification in practical work.