The incidence of pertussis has shown an upward trend in recent years. Pneumonia is the most common complication，which is mostly seen in newborns and infants under 6 months of age. The clinical manifestations of severe cases are complex，and the disease progresses rapidly，which is very likely to cause serious complications and even death. This article reviews the epidemiological characteristics，clinical manifestations，and the latest treatment strategies of pertussis complicated with severe pneumonia in children. By integrating the latest research progress at home and abroad，this article aims to provide clinical physicians with reasonable diagnosis and treatment regimens to reduce the mortality rate.

pertussis, severe pneumonia, child, complications

百日咳发病率近年来呈现上升趋势，肺炎是最常见的并发症，多见于新生儿和6月龄以下婴儿，重症患儿临床表现复杂、病情进展迅速，易致严重并发症甚至死亡。该文阐述儿童百日咳合并重症肺炎的流行病学特点、临床表现以及最新的治疗策略。通过综合国内外最新研究进展，旨在为临床医师提供合理的诊疗方案，降低病死率。

百日咳, 重症肺炎, 儿童, 并发症