Abstract: On this paper, by using the view of microscopic agricultuer for reference, after the comprehensive apprais on the natural environment of agricultuer, the present situation of that system is analysed synthetically, and some optimu ways are put forward, i.e：
1）adjusting the system’s constructure；
2）strenngtheing the feedback of resources in the way of multiple links and large-scale loop and；
3）strengthening the feedback of information within the system