In this study, we conducted to select the promising crops for both uses in the bioethanol and forage production in Korea. The result indicated t㏊t Natsukaje (guinea grass), Gwangpyeongok (corn), Jumbo (sorghum×sudangrass hybrid), SS405 (sorghum×sorghum hybrid), Millex32 (pearl millet), Jeju barnyard grass), Alamo (switch grass) and Selection75 (klein grass) showed the production of biomass from the highest to the lowest in order. However, the order of the production of quality forage was, from the highest to the lowest, Natsukaje (guinea grass), Jumbo (sorghum×sudangrass hybrid), SS405 (sorghum×sorghum hybrid), Gwangpyeongok (corn), Millex32 (pearl millet), Selection75 (klein grass), Jeju (barnyard grass), and Alamo (switch grass). We concluded the Natsukaje (guinea grass) was the best bioethanol crop, and also the Natsukaje (guinea grass) was the best for forage production.