This experiment was conducted to investigate the selection of regional double cropping system for production of organic forage in middle part of Korea and investigated their productivity, feed values and stock carrying capacity. The test results proved the Sorghum×Sudangrass hybrid was 10.9 ton ․ ha-1, the one of Rye + Red clover and Rye + Hairy vetch were the highest one as 3.3 ton ․ ha-1 and the relative yield about a Rye is higher in the dry matter yield in the field soil. And as for the relative forage values (RFV), Corn is the most excellent ones as 96.6 but there were no the significant difference between the Sorghum×Sudangrass hybrid of 84.4 and it. The total digestible nutrient (TDN) content in Rye + Hairy vetch is higher than others as 59.7%. As for the relative feed value, Rye + Red clover is the highest one as 83.8 but there was no significant differences between them. As for the ability to raise livestock in the field soil, the average values of KCP and KTDN are shown as 4.27 head/ha/yr in Sorghum×Sudangrass hybrid. As for the same crops, the average values of KCP and KTDN showed the highest ones as 1.74 head/ha/yr, in Rye + Red clover but there were no the significant differences. As for the dry matter yield of the rice field soil, organic rice straw was 3.3 ton ․ ha-1 and Rye + Red clover significantly showed the highest values as 4.1 ton ․ ha-1. In the rice filed soil, the crude protein content of organic rice straw was 3.1% and the TDN content of organic rice straw was 55%. The TDN content in Rye + Red clover was higher than others as 59.7%. As for the relative forage values, Rye + Red clover showed the highest one as 83.8 but there were no significant differences between them. As for the ability to raise livestock in the rice field, the average values of KCP and KTDN in the organic rice straw was 1.04 head/ha/yr and the average values of KCP and KTDNM in Rye + Red clover is the highest one as 1.84 head/ha/yr, but there were no significant differences in all of them.