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Ionic liquids (ILs) have gained wide‐spread focus owing to its negligible vapor pressure, low heat capacity, high thermal stability, and structural diversity. The solubility and selectivity toward carbon dioxide has made ILs a unique platform that possess the potential in gas separations. In particularly, combining functional ILs with membranes and porous supports is an efficient way to design task‐specific materials for CO2 separations. This minireview summarizes the developments and advances of ionic liquids‐based membranes for CO2 separations in recent three years, with an emphasis on the strategy of incorporating ionic liquids and CO2 separation performance.