Abstract
In this study, the utilization system of set-a-side field by planting of energy crops in Germany is researched and its effects are pointed from a view of rural planning. As a result, it is clarified that not only EU Common Agricultural Policy (CAP), but also Renewable Energy Act (REA) is related to the utilization of set-a-side field. Enforcing CAP and REA at a same time makes appropriate utilization of set-a-side field, especially profitable price for the electricity from small scale generations, using energy crop from set-a-side field. Utilization of set-a-side filed by energy crops have a possibility to strengthen the public function of agriculture, and produce the new additional income for farmers, resulting in total promotion of rural area.