Objective:To analyze the research on airway clearance technology, explore the trends, and research hotspots for airway clearance technology.Methods:The literature on airway clearance technology was searched in the Web of Science core database. The search period was from January 1, 2000, to August 31, 2023. Origin 2022, Scimago Graphica, VOSviewer 1.6.18, and CiteSpace 6.2.4 software were used for visualization analysis.Results:A total of 2 553 articles were included, and the number of articles on airway clearance technology showed a fluctuating upward trend from 2000 to 2023. The United States ranked first in the world in terms of publication volume. Chang was the author with the highest number of publications. Research institutions were mainly concentrated in universities in countries such as the United States, China, and Australia, with the University of Sydney having the highest publication volume. The research hotspots mainly focused on types of airway clearance disorders, types of airway clearance techniques, key populations and implementation sites for airway clearance.Conclusions:The number of publications on airway clearance technology continues to increase. It is necessary to strengthen interdisciplinary and cross-regional exchanges and enhance the depth and breadth of research by Chinese scholars.