Metal-organic frameworks (MOFs) have emerged as a promising solution for the detection of toxic gases due to their unique properties. MOFs offer high surface area, tunable pore structures, and selective binding sites that can detect and differentiate between various gases accurately. However, the development of MOF-based gas sensors still faces several challenges that need to be addressed before they can be widely adopted. This abstract discusses the potential of MOF-based gas sensors in detecting toxic gases, the challenges that need to be overcome, and the ongoing research towards enhancing their sensitivity, selectivity, stability, and miniaturization. With continued research and development, MOF-based gas sensors could become more reliable, sensitive, and versatile tools for gas sensing and analysis, contributing to a safer and healthier environment for all.