阐述了“7·23”旅客列车事故发生经过并进行了原因分析，从工程管理视角研究提出了4点重要启示：强化铁路新产品研发管理，完善铁路新产品准入管理，提高铁路运输应急处置能力和科学有序地推动铁路建设。

The process and reasons of “7·23” passenger train accident were elaborated, and four aspects of important revelation were raised from the perspective of project management: strengthening the research and development management of new railway products, completing the access management of new railway products, improving the emergency response capabilities of railway transportation, and promoting the railway construction scientifically and orderly.