This experiment was carried out to select the optimum forage cropping system at the Dae-Ho reclaimed tideland, Korea from March, 2004 to October, 2006. Emergency rate of summer crop such as sorghum sudangrass was low (). Winter crop such as Italian ryegrass after continually cultivating wholecrop rice were highest (91%). Wintering rate of Italian ryegrass after continually cultivating wholecrop rice was highest and lowest in wholecrop barley after continually cultivating sorghumsudanuass. In cropping system, fresh and dry matter yield of annually wholecrop rice+Italian ryegrass (50,807kg, 15,065kg) were highest and lowest in annaually serghumsudangrass+wholecrop barley (17,2471kg, 5,209kg), respectively.