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Abstract The capture, utilization, and storage of CO₂are the primary options to minimize the adverse effects of global warming and related climate change resulting from increased anthropogenic CO₂emissions. In recent years, amino acids and amino acid‐based ionic liquids (AAILs) are proposed as promising alternatives to the traditional aqueous amine solvent‐based CO₂capture technology due to the presence of the ─NH₂group and a CO₂adsorption mechanism like amines, but with many additional advantages. Besides CO₂absorption in solvent form, amino acids/AAILs‐functionalized porous sorbents demonstrate potential in CO₂adsorption technology, a promising alternative to solvent‐based CO₂absorption technology, as they can avoid the huge energy penalty associated with aqueous solution regeneration by heating. Additionally, amino acids/AAILs, with their CO₂capture abilities, have demonstrated their potential in other promising CO₂sequestration technologies: direct air capture, CO₂mineralization using alkaline industrial waste, and conversion of CO₂into value‐added products. This article reviews the mechanism, comparative performance, and prospects of amino acid‐based state‐of‐the‐art technologies for CO₂absorption and adsorption, direct air capture, bio‐mineralization, and conversion of CO₂into value‐added products, which is helpful for the further development of amino acid‐based CO₂sequestration technologies.