Abstract: This paper introduces the research on the key technology of bending control of strain clamp for transmission line. Through the development of special measurement tools, the introduction of intelligent measurement and data analysis functions, and the improvement of design to meet the needs of high-altitude operation, the problem of bending of strain clamp in the process of crimping is solved, and the quality control ability and detection efficiency and accuracy of crimping process are improved to ensure the operation reliability and safety of transmission line. Through the research and implementation of this scheme, it can not only reduce the transmission line fault caused by crimping quality defects, but also significantly reduce the labor intensity of construction personnel, improve the working environment, and promote the mechanization and intelligent development of transmission line construction technology.