Abstract: This paper discusses the principles of SF₆ infrared imaging leakage detection technology, and summarizes the standards related to detection technology. According to the technical principles, the influencing factors in the testing practice are analyzed, and corresponding countermeasures are proposed. Further, the characteristics of infrared imaging leakage detection technology are compared and analyzed. The technology application strategy is formulated according to its characteristics. Based on analyses and discussions, this paper shows the potential for improvements to SF₆ infrared imaging leakage detection technology, and the inspection quality of SF₆ gas insulation equipment, such as switches, mutual inductors, bushing, and transformers, can be improved