China´s food supply-demand situation and countermeasures research

Because rice, wheat, and corn are the main foods in China, this paper analyses the supply and demand situation of food in recent years based on a lot of data of them, respectively. Furthermore, we putted forward some countermeasures based on the view of food safety, such as gradually increase grain price, increase farmers´ income, strengthen land transfer, and establish valuation system, to provide a reference to the future development of grain production, circulation management, and food security.