Abstract: The agricultural products flow vendors have always been a difficult problem to urban management. This paper analyzes flow vendors disadvantages and advantages of the CSA mode from the view of city managers, farmers and consumers. Together with the present situation of agricultural products flow vendors, the paper comes up with the idea for changing vendors into CSA. The paper carries a SWOT analysis of how Suburban agricultural products vendors become CSA with Guizhou Province as an example, and finally puts forward some specific measures like building communication channels for farmers and consumers.