Wechat has the characteristics of interaction,non-linearity,strong relationship and so on.It is easy to become the hotbed of extreme information dissemination of hot events,resulting in the infection and spread of negative emotions.According to the content analysis of the top five social hot events and political hot events in the“top 10 domestic hot social events”in 2019 and the“Baidu Chinese search list”released by Baidu boiling point app,the results show that the public sentiment and the sentiment of the subscription are consistent with the hot events,and the consistency of the mood expressed by the official account of the media is higher than official media.The public number is more emotional than the subscription;The subscription shows a distinct tendency to stir up sensations through sensational narrative;The positive public articles in political topics have a significant effect on arousing the positive emotions of the public.The subscription of the mainstream media in the new media age should create a permeable and circle communication structure and actively set up positive energy issues.