Zinc-air batteries (ZABs) are promising candidates for post-lithium-ion battery technology owing to their safe, low-cost, and eco-friendly nature. However, ZABs suffer from CO₂ corrosion, which leads to quick battery deterioration and severely limits their applications. Here, we explain the reason behind ZAB failure by CO₂ corrosion and systematically review various anti-CO₂ strategies for liquid and flexible ZABs. Recent advances are highlighted, and the effectiveness of these strategies in extending battery lifetime is evaluated. Current challenges and perspectives for the future development of anti-CO₂ ZABs are also provided. We believe this review will deliver a comprehensive sight for anti-CO₂ ZABs.