With the problems of food safety happening increasingly, the demand of the public for agricultural products becomes stronger and stronger. This paper declared the status of the production process of pollution-free vegetables in Leping city of Jiangxi Province in detail. At the same time, it put forward the existing problems in the current process and the recommend for new system. In the end, based on the internet of things, it designed the Agricultural Farm System, including the process of purchasing, storage and outbound, planting, processing, sale and distribution.