Abstract: Based on analysis of theagricultural natural resources in Mengu town,Fang county,Qingba Mountain District and the main problems in the agro-economic system,a study on optimizing design of the agro-economic system for the town was conducted. Ways for exerting the potential productivity of the superior agricultural natural resources,optimizing the land utilization and the agro-economic structure,and improving the output-input ratio were presented.