In order to develop CO₂ absorbents with higher cyclic loading and lower regeneration energy consumption. Three systems were constructed: 2-EEMPA/DMF/H₂O, 2-EEMP/AMP/DMF/H₂O and 2-EEMPA/PZ/DMF/H₂O, using N-(2-ethoxyethyl)-3-morpholinopropan-1-amine (2-EEMPA), 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) as active components and N, N-dimethylformamide (DMF) and water (H₂O) as solvents. The CO₂ absorption and desorption performance of the three systems at different ratios were studied and compared with the 30% MEA solution. The results showed that 30E20D50H, 20E10A40D30H and 20E10P40D30H were the best ratios for their respective systems. Among them, 20E10P40D30H absorbent performed the best, the first cycle loading reached 0.573 mol/mol, which was 2.09 times that of 30% MEA solution, and the desorption rate was 82.7% at 80°C, which was 28.1 percentage points higher than that of 30% MEA solution, and the desorption energy consumption was only 34.6% of 30% MEA solution. After five cycles of absorption and desorption, the CO₂ absorption loading remained at 0.609 mol/mol, which was 65.0% higher than that of 30% MEA solution.