“7.23”动车事故的发生催生了“高铁体”的流行,这样一种流行暴露出了政府所遭遇的信任危机。作为又一次以自媒体为主导的社会事件,该事件巨大的社会影响力在同类事件中具有一定代表性,从“把关人”、议程设置、沉默的螺旋、拟态环境等理论对其所进行的传播学解读能让我们更好从事件本身的剖析中理顺自媒体时代传播过程所应重视的新问题和新思路,并及时做出应对措施。 “7.23 ” The occurrence of motor car accident gave birth to the “high-speed railway body,” the popularity of such a popular exposure of the government suffered a crisis of confidence. As another social event dominated by the media, the huge social influence of this event has some representativeness in similar incidents. From the theory of “guarding people”, agenda setting, silent spiral and mimicry environment, The interpretation of communication can help us to better understand the new issues and new ideas that should be paid attention to during the media age dissemination from the analysis of the events themselves and to make timely responses.