Abstract: This paper provides a review of the research progress in catalytic systems for low-temperature CO₂ methanation, which focuses on the detail discussion of the regulation effect of supports, promoters, and metals as active species on catalyst performance. In conventional catalytic systems, Ni-based catalysts have been widely studied due to their excellent activity and low cost. For example, the modified Mn-Ni/Al₂O₃ catalyst could achieve a CO₂ conversion of 88.9% and a CH₄ selectivity close to 100% at a reaction temperature of 220 ℃. Secondly, in terms of new catalytic technologies, the paper provides a detailed overview of recent advances in plasma-catalytic synergetic systems and photothermal catalyst. By activating CO₂ molecules through non-thermal plasma technology, the activation energy of the reaction can be significantly reduced. For example, in the plasma-catalytic synergetic system, the Ni/Al₂O₃ catalyst could achieve a CO₂ conversion of 60% and a CH₄ selectivity of 97% at a reaction temperature of 150 ℃. In addition, the introduction of photo-thermal catalytic technology further expands the reaction pathways for low-temperature CO₂ methanation. The NiFeM （M=Al, Zr, Mg, Cr） catalyst could achieve a CO₂ conversion up to 98% and a CH₄selectivity of 99% under light illumination. The introduction of these novel technologies offers a broader application prospect for low-temperature CO₂ methanation. Finally, based on the current research status, the paper provides an outlook on the future development direction of the low-temperature CO₂ methanation field, which clarifies the key scientific challenges and technical difficulties that need to be addressed and offers the valuable insights for further research in this area.