Extension and deepening of new media development to the traditional communication theory from the perspective of "Chaijing Event"

As soon as the new media represented by "network" has appeared, it had a huge influence. With the growing emergence, new media greatly extends the human communication ability, has more and more audience, also changes the relationship between the media and the audience, and even has a disruptive influence on traditional media in some level. At the same time, mass communication properties and interpersonal communication characteristics of new media are more profound and intriguing. As the communication work with explosion level in 2015, "Under the Dome" has been done by the development of new media, and eventually has been ruined, which is the so-called "Either success or failure boils down to the same person." How did the development of new media affect the trend of documentary? From "Chai Jing Event", we can find some different peculiarities of new media from communication theory before. The paper attempts to take "Chai Jing Event" as an example, summarizes the impact and change of new media development on the traditional communication theory from the perspective of communication theory, and analyzes extension and deepening of it to the classical communication theory. "Under the Dome", the public documentary taken by Chaijing at her own expense and lasting 103 minutes and 55 seconds, has get 300 million crazy hits within four days and called the phenomenal video which first has the most widely spread in 2015, the biggest impact with the use of new media by many people in the media. In the meantime, it also brings us too many feelings. Someone was shocked by the content of documentary, and someone was also puzzled by a mixed bag of reviews online, in the end, the documentary disappeared in people's sight, then we call the whole process "Chai Jing Event". New Year is coming, and "Under the Dome" has long gone, but haze still enters the room unexpectedly, we should look back "Under the Dome" and "events" caused by it and think something combining with the development characteristics of new media era, making it useful for the future.