This article mainly adopts content analysis method to study administrative microbloggings’ information release and influences in the emergencies. According to the study，administrative microbloggings make good use of time to publish key information in the emergencies，most of which is neutral and original. Moreover，at the various stages of the emergency，the frequency of information release is different. But there are some problems at the same time；when it comes to different emergencies，there exist serious imbalances on the amount of the information，obvious differences of fans participation，and so on. The research suggests that locally administrative microbloggings should pay more attention to play a dominant role. As to administrative microbloggings，they should improve the audiences’ participation and interaction and release the key information to guide public opinion. Moreover，they should persist in the audience-oriented concept and show the government responsibility.