At present, the majority of population domestic grain depot exist several problems, such as the low level of storage facilities, the inexact way of raw grain collection and storage, the low efficiency of traditional cutting and inspection, and these problems have already hindered the further development of food security refined managed. Promoting the Intelligent Grain Depot (Mechanization, Automation, Informatization and Intelligent Control) is of great importance in ensuring the food storage security. This paper analysed the present situation of inaccurate grain samples, inaccurate inspection and low working efficiency, and explored the approaches of elevating the representative of sample by Intelligent Sampling System automatic scan the Grain surface, automatic compute sample site. The approaches of automatically inspects the generated moisture, unit weigh, impurities and other quality indicators were also explored by Intelligent Inspection System, and the feasibility of promotion and application of Intelligent Sampling System and the intelligent Inspection System were also studied.