Abstract: With the continuous development of social economy, people's demand for power supply is gradually increasing, and at the same time, higher requirements are placed on the power supply capacity of the power supply system.Based on this, this article firstly introduces the construction characteristics of high-voltage overhead lines, then analyzes the construction failures of high-voltage overhead lines, and finally discusses strengthening the safe operation management and lightning protection measures of high-voltage overhead lines, in order to further promote the development of high-voltage overhead lines.