The solubility data of CO, in four azole-based deep eutectic solvents (DESs), prepared from azoles (imidazole, Im; 1,2,4-triazole,Tri) and acetylcholine chloride (ACC), were reported at temperatures of 303.15, 313.15, 323.15, and 333.15 K under a pressure range of (20.0 600.0) kPa using the isochoric saturation method. Henry's constants and thermodynamic properties of standard Gibbs free energy, enthalpy, and entropy changes of CO, dissolution were derived by correlating the data. Results demonstrated that ACC-Im DESs (H-m = 1.91-4.46 MPa.kg.mol(-1)) possess higher capacities of CO, than CC-Tri ones (H-m = 2.66 4.58 MPa.kg.mol(-1)). The CO, solubility increased with rising pressure, mole ratio of Im to ACC, and decreasing temperature. All the obtained enthalpies of solution were negative. Furthermore, the comparison of dissolution capacities between present DESs and other DESs as well as some ionic liquids in the literature was conducted.