介绍了京沪高铁工程中,吊运梁机的加高技术改造背景,从工程进度、工程成本方面分析了改造的实施步骤,改造后压杆和整体的稳定性,及改造过程中的安全重点、技术重点等。为今后的类似技术改造提供经验及依据。 This paper introduces the background of heightening technology of lifting crane in Beijing-Shanghai high-speed railway project, analyzes the implementation steps of the reconstruction, the stability of the compression rod and the whole after the reconstruction and the safety priorities in the process of reconstruction from the aspects of project progress and project cost , Technical focus and so on. Provide experience and basis for the similar technological transformation in the future.