中文摘要：

为研究突发事件网络舆情演变中．意见领袖的主要类型、作用方式与效果，以药家鑫事件为例，从知识背景、社会地位、媒体使用三个维度对意见领袖进行了类型分析，然后以事件舆情生命周期为脉络，具体分析了意见领袖的介入时点、行为方式，最后从事件、媒介、受众等层面研究了意见领袖的影响。

英文摘要：

In order to study the main types, mode of action and effect of opinion leaders of emergencies in network opinion evolution, the article presented a case study of Yao Jiaxin event to analyze opinion leaders according to three dimensions such as knowledge background, social status and media use in the type analysis, then analyzed their intervention time and behavior for the life cycle of events, and finally studied the influence of opinion leaders from the aspects of the event, media and audiences.