在新时代，习近平总书记提出要加快应急管理体系和能力现代化，应急语言的研究上升到了国家战略意义层面，对安全生产、防灾减灾、消防救援 等发挥着极其重要的作用。

本文以应急简明汉语词汇为研究对象，以北京语言大学、北京师范大学等众多高校联合研制的《疫情防控“简明汉语”》为研究文本，梳理并总结前人的研究成果，运用文献研究法、文本分析法、统计分析法等研究方法，对《疫情防控“简明汉语”》中的应急简明汉语词汇进行统计和分析，并总结其词汇选择的方法和原则。

根据文本分析得到的数据，本文从词汇难度等级和文本可读性两个方面，对《疫情防控“简明汉语”》词汇简化和替换选择的效果进行测定，并得出依据文中词汇选择的方法和原则，该文本中的词汇简化效果显著的结论。

在此基础上，本文分析了《疫情防控“简明汉语”》中词汇选择的特点，总结其可取之处以及存在的局限，并根据目前存在的问题提出一些改进建议，以便今后的其他产品能更好地向在华外国人提供应急语言服务。最后，本文结合当下研究需要，给予应急简明汉语研究、国际中文教育发展、国家语言服务建设一定启示和参考意见。

In the new era, General Secretary Xi Jinping proposed to speed up the modernization of emergency management system and capability, and the study of emergency language has risen to the level of national strategic significance, playing an extremely important role in safety production, disaster prevention and mitigation, and firefighting and rescue.

This paper takes emergency simplified Chinese vocabulary as the research object, takes "Epidemic Prevention Simplified Chinese" jointly developed by Beijing Language and Culture University, Beijing Normal University and many other colleges and universities as the research text, combs through and summarizes the research results of the predecessors, and applies the research methods of literature research method, textual analysis method, and statistical analysis method, etc., to study the "Epidemic Prevention Simplified Chinese", the research method of literature research, text analysis, and statistical analysis is used to statistically and analytically analyze the emergency simplified Chinese vocabulary in "Epidemic Prevention Simplified Chinese", and to summarize the methods and principles of its vocabulary selection.

Based on the data obtained from the text analysis, this paper measures the effect of vocabulary simplification and replacement selection in "Epidemic Prevention Simplified Chinese" from the aspects of vocabulary difficulty level and text readability, and concludes that the vocabulary simplification effect in the text is remarkable according to the methods and principles of vocabulary selection in the text.

On this basis, this paper analyzes the characteristics of vocabulary selection in "Epidemic Prevention Simplified Chinese", summarizes its merits and limitations, and puts forward some suggestions for improvement based on the existing problems, so that other products in the future can better provide emergency language services to foreigners in China. Finally, this paper gives some insights and references to the study of emergency simplified Chinese, the development of international Chinese language education, and the construction of national language services in the light of the current research needs.