With the fast development of civilizations and industrialization, the proportion of the agriculture to the total economic gross has obviously been descending. But it hereby can not be ignored that the agriculture's status and meaning are important to perfect the city function of the urbanism circle, and to develop industries. Modifying agriculture structure and functions and developing strongly modern urban agriculture are significant tasks to promote the development of Chongqing agriculture in Urbanism Circle; and are also the main contents to develop the whole industry in Urbanism Circle and define the city function.