介绍了高速公路高边坡整治工程中预应力锚索的应用 ,阐明预应力锚索在边坡加固中的原理和破坏形式 ,对应用中出现的问题 ,特别是预应力锚索的锚固段问题进行分析和研究 ,可以为类似工程参考和借鉴 This paper introduces the application of prestressed anchor cable in high slope rehabilitation project of expressway, clarifies the principle and failure mode of prestressed anchor cable in slope reinforcement, and presents the problems in application, especially the problem of anchorage section of prestressed anchor cable For analysis and research, for similar projects reference and reference