The power system is one of the indispensable infrastructure in modern society,and as an important component of the power system,the reliability and safety of transmission lines are crucial for the stable operation of the entire system.The traditional inspection methods for transmission lines have certain limitations and are easily affected by external uncontrollable factors during the implementation process.Therefore,it is particularly important to use advanced automation technology for monitoring and fault diagnosis of transmission lines.The article explains the importance of transmission line inspection,analyzes the basic requirements of transmission line inspection,and provides an overview of airborne ultraviolet inspection technology.It explores the implementation methods and specific fault diagnosis techniques of airborne ultraviolet inspection for transmission lines,aiming to provide constructive suggestions for the efficient application of airborne ultraviolet technology in transmission line inspection and fault diagnosis.