目的 分析危重症护理领域文献的研究热点及发展趋势。 方法 以Web of Science核心数据库为数据源，检索2020年1月1日—2024年12月31日收录的危重症护理研究文献。采用CiteSpace 6.2.R3软件分析。 结果 纳入文献4 288篇，发文量呈增长趋势。高频关键词有“palliative care”（安宁疗护）、“mechanical ventilation”（机械通气）等；共生成“palliative care”（安宁疗护）等14个聚类标签、“early ambulation”（早期下床活动）等25个突现词；研究热点主题涉及“palliative care”（安宁疗护）、“moral distress”（道德困境）、“prone position”（俯卧位）、“mechanical ventilation”（机械通气）、“post-intensive care syndrome”（重症监护后综合征）等内容。危重症护理领域安宁疗护研究内容呈现多样化，从基础护理质量到危重症护理专科化的纵向发展，数据赋能与新兴技术融合推动危重症护理智慧化转型是研究趋势。 结论 2020—2024年危重症护理领域研究热度持续攀升，研究范畴不断拓展，涉及人文护理、心理健康促进、危重症护理技术的质量改进、康复护理、智慧护理等方面。未来仍需要加强多学科协作、积极探索与总结危重症护理领域的热点，为促进危重症护理领域研究的深度及广度提供依据。

Objective To analyze the research hotspots and development trends of literature in the field of critical care. Methods With the core database of Web of science as the data source，the critical nursing care research literature collected from January 1，2020 to December 31，2024 were retrieved. CiteSpace software was used to analyze. Results 4 288 articles were included，and the number of published articles showed an increasing trend. High-frequency keywords included “palliative care”，“mechanical ventilation”，etc. A total of 14 cluster tags such as palliative care and 25 emergent words such as early ambulation were generated. The hot topics of research involved palliative care，moral distress，prone position，mechanical ventilation，post-intensive care syndrome and so on. The research trends included the diversification of search contents of hospice care in the field of critical care，the vertical development from basic nursing quality to critical care specialization and the integration of data empowerment and emerging technologies to promote the intelligent transformation of critical care. Conclusion From 2020 to 2024，the research in the field of critical nursing care has been rising，and the research scope has been expanding，involving humanistic care，mental health promotion，quality improvement of critical care technology，rehabilitation care，intelligent care and so on. In the future，it is still necessary to strengthen multidisciplinary cooperation，actively explore and summarize the hotspots in the field of critical nursing care，and provide basis for promoting the depth and breadth of research in the field of critical nursing care.