[目的/意义]梳理、总结我国突发事件的应急信息管理工作主要内容及其发展趋势，对于健全我国突发事件应急信息管理机制、及时有效处置各类突发性事件具有一定的参考、借鉴意义。[方法/过程]对突发事件应急信息管理相关概念、国内外相关研究进行概括、归纳；利用文本聚类、科学计量、内容分析和可视化等方法对我国突发事件应急信息管理相关的政策文本进行系统性挖掘与量化分析；以时间序列为逻辑线索，对我国2003—2020年413份关于突发事件应急信息管理的政策进行研究，通过计量及文本分析其主要内容，揭示其主要特征。[结果/结论]研究发现，近18年来我国突发事件应急信息管理政策主要包括信息预警、信息报告、信息发布、信息共享以及信息管理平台等内容，呈现出中央部门引领、热点事件驱动、经济文化支撑、信息技术依赖度增强和公众监督参与度提高等特征。

[Purpose/significance] Combing and summarizing the main content and development trend of emergency information management in China has certain reference significance for improving the emergency information management mechanism and dealing with all kinds of emergencies in a timely and effective manner.[Method/process] Summarizing relevant concepts of emergency information management and relevant studies at home and abroad; using methods such as text clustering, scientific measurement, content analysis and visualization to systematically mine and quantitatively analyze the policy texts related to domestic emergency information management; taking the time series as the logical clues, the 413 policies on emergency information management of emergencies in China from 2003 to 2020 are studied, and their main contents are analyzed through measurement and text analysis to reveal their main characteristics.[Result/conclusion] It is found that in the past 18 years, emergency information management in China mainly includes

information early warning, information reporting, information release, information sharing and information management platform, showing the characteristics of central department leading, hot event driving, economic and cultural support,information technology dependence and public participation.