本文以国内2010-2014年的12例从热点公共事件产生的网络流行语为对象，运用定性比较分析（QCA）的研究方法分析网络流行语得以高热度传播的微观机制。研究提炼了影响网络流行语的六项微观因素，包括公共事件的属性、流行语的创造主体、流行语的情绪表达方式、流行语是否被主流媒体采用、流行语表达的情绪内容以及是否含有公众诉求。文章通过清晰集的定性比较分析，归纳了网络流行语得以有力传播的三条微观路径，分别为：当事人自主创造的、以戏谑方式呈现且并被纳入官方话语场的流行语，或者是在政治事件中由大众戏谑调侃某种不满情绪和诉求的流行语，或是在政治事件中大众杜撰表达不满情绪且进入官方话语场的流行语。

This article picks 12 hot domestic public events and the corresponding internet buzzwords from 2010 to 2014 as samples. Adopting the method of crisp-set qualitative comparative analysis, it analyzes the micro-mechanism of the wide spread of buzzwords. Some variables have impact on the spread, including the nature of the event, the subjects who create buzzwords, the ways of emotional expression of buzzwords, the facts whether buzzwords are adopted by mainstream media, the emotion that buzzwords convey and the facts whether buzzwords contain public appeals. This study finds three micro-paths that can explain this phenomenon: buzzwords are created spontaneously by a person concerned and taken into the official field of discourse in a playful way; in a political event buzzwords are created by the public to convey dissatisfaction and demands with ridicule; or fabricated by the public to convey dissatisfaction and taken into the official field of discourse. Buzzwords under these three circumstances are likely to be spread widely.