Using emergy evaluation method, this paper compared the emergy efficiency and sustainable development capability of the different circular agriculture modes in North China. The emergy evaluation on four modes were conducted, which including wheat-maize cropping system with conventional fertilization (control), cropping system with crushed straw (farmland circulation mode), cropping- feeding (dairy cattle) system with dung used as fertilizer (farmland-livestock mode), and cropping-feeding-biogas system with biogas slurry used as fertilizer (farmland-biogas slurry mode). The results showed that the emergy yield ratios (EYR) of the 4 modes were higher than 1, the emergy yield ratios (EYR) of the farmland circulation mode, farmland-biogas slurry circulation mode, and farmland-livestock circulation mode, which were respectively 1.13 times, 54.22%, and 50.2% as much as those of control mode, whereas emergy investment ratios of the farmland circulation mode, farmland-biogas slurry circulation mode, and farmland-livestock circulation mode were respectively 80.88%, 4.25 and 5.85 times as much as those of control mode. The environmental loading ratios (ELR) of the farmland circulation mode, farmland-biogas slurry circulation mode, and farmland-livestock circulation mode were respectively 78.95%, 3.71 and 1.76 times as much as those of control mode. The environmental pressure of farmland circulation mode was the lowest, the farmland-biogas slurry circulation mode was the highest. But the ELRs of 4 modes were acceptable. The emergy index of product safety of the farmland-livestock circulation mode were －0.015, its safety was the highest, the products of the control mode had some safety loophole. The farmland circulation mode had the strongest sustainable potential in 2 planting modes, the farmland-livestock circulation mode had the strongest sustainable potential in 2 comprehensive circulation modes. In conclusion, farmland-livestock mode has the strongest sustainable potential and is an ideal circular agriculture mode, which should be popularized in the region.