The sustainable development of agriculture is the basic guarantee and top priority area to China’s sustainable development.At present, there are some drawbacks about the policy of the industry supporting agriculture, which leads to difficult to change the dual economy and promote the development of integration about urban and rural areas.This article analyzes the providing drawbacks about the policy of industry supporting agriculture from the viewpoint of providing system, analyzes the goals and routes about the industry supporting agriculture, and suggests that we should innovate the social public policy, at the same time, enhance the system’s construction of industry supporting agriculture.