Against the backdrop of the deep integration of artificial intelligence, big data, and the Internet of Things in the gas industry, this paper explores the concept and connotations of “gas visual technology,” which emerges from the profound fusion of computer vision with the gas sector. It analyzes its key technological framework, encompassing multi-source data acquisition based on visible light, thermal imaging, laser, and other modalities, as well as core algorithms such as image processing, feature extraction, and intelligent recognition. Finally, it focuses on the application of this technology in scenarios including smart inspection, safety monitoring, and integration with digital twins, while also outlining its future development trends, with the aim of providing reference and support for leveraging computer vision to ensure the safe and efficient operation of gas systems.