The production of bio-energy crops is a major research project in the emphasizing the “low carbon ․ green growth” strategy. For this, the possibility of the introduction of the new energy crops improve the agricultural income from farming must be diagnosed. This study describes the level of agricultural income per unit area by cropping system based on the income of crops in the field. Especially, we have chosen the southern part attracting the attention in the possible area of the bio-energy crop production. This study consists of five chapters. Chapter Ⅰ is the introduction. Chapter Ⅱ is on the status of the southern part cropping system and the analysis of the economic value. Chapter Ⅲ is on the economic value analysis introducing new bio-energy crops. Chapter Ⅳ is on the comparative analysis for the economic value of the croping system introducing new bio-energy crops. Chapter Ⅴ is the conclusion.