采用文献计量学的方法展现国内外重症医学文献现状、原始研究与二次研究情况及研究热点，为相关研究提供参考。

计算机检索PubMed、Web of Science、万方数据知识服务平台、中文科技期刊数据库、中国知网期刊全文数据库和中国生物医学文献数据库，查找国内外关于重症医学研究的文献，检索时间均限定为1970年1月1日至2017年9月1日，运用Excel 2013提取文献的基本信息，社会网络分析软件Ucient 6.0分析国家间的合作关系，HistCite 12.03进行文献时间序列分析。

共纳入国内外文献353 882篇，有1963篇Meta分析发表，国内外均显示文献呈逐年上涨趋势，而国内文献的上升趋势主要集中在2005至2017年。文献中的原始研究与二次研究都主要集中在欧美国家，发表数量以美国为首，但研究机构以多伦多大学为首。国内Meta分析已跻身全球第4位，但原始研究数量较少，且机构分散。国外研究集中在机械通气和脓毒症等方面，国内胰腺炎研究较多。

在过去的近50年间，重症医学领域研究呈现逐年递增趋势，仍是当前医学研究中的热点，欧美国家处于主导地位。国内重症医学研究水平与国外差距较大，主要体现在文献的数量、原始研究的开展以及与其他国家的合作度均较低。

The bibliomrtrics was used to show the status and hot spots of domestic and foreign literature, original research and the second data analysis about critical care medicine.providing a reference for further research.

We systematically searched the papers about critical care medicine from Pubmed, Web of science, Wanfang, VIP, CNKI and CBM database from Jan 1, 1970 to Sep 1, 2017. Excel 2013 was used to extract the basic information. Ucinet 6.0 was used to analyze the collaborations among countries, and HistCite 12.03 was used to conduct time series analysis.

A total of 353 882 articles were involved, including 1963 meta-analyses. Literatures showed an upward trend year by year, while the rising trend of domestic literature was mainly concentrated from 2005 to 2017. The articles mainly attribute to Europe and the United States. The country with maximum number of publications is USA, whereas the University of Toronto rank first according to the article amount roll. The domestic meta analysis has ranked fourth in the world, but the number of original researches is few and the institutions are scattered. Studies from abroad mainly focus on mechanical ventilation and sepsis, while they focus on pancreatitis in China.

In the past 50 years, studies about critical care medicine have been increasing year by year which are the hot spot in current medical research. European and American countries are in a dominant position. The level of research in critical care medicine in China is far from that in foreign countries, including the number of documents, the performance of original research, and the lack of cooperation with other countries.