The infinite transmission of information on the Internet makes any content likely to become a topic on the Internet, but some things filtered by mainstream media can cause an uproar on the Internet. Some topic planners, such as network promoters, are easy to create rumors, one-sided or false information, and entertainment events have gradually become the darling of the network setting agenda. Looking at the network ecology in recent years, it seems that it is getting closer and closer to the yellow news in Pulitzer and Hurst era. The content of communication is selected according to the principle of happiness, and even the entertainment elements that satisfy the public's curiosity are excavated from hard news. From the unrelenting event to Wang's divorce, it confirms the place of entertainment news in the current environment. In essence, this information has its own soil for survival and development, but it can not be ignored to dilute serious news, dispel positive public opinion and subvert traditional values.

As Godfrey said, "If the media can successfully focus on a certain issue, it can be used to set the agenda. They provide the background, which determines how people think about a topic and evaluate its value, and the media constructs the public agenda accordingly. [1] "When the context provided by the network deviates from the objective reality, people's thoughts will be restrained in a subtle way. For college students who frequently contact the Internet, hot events on the Internet will not only enrich their cognitive objects, but also greatly impact their values, especially the deliberately created negative topics, and the resulting negative effects are worthy of vigilance.

In the new media era, information is released more freely, but grandstanding and ambiguous events abound on the Internet, which can be seen from the annual "Top Ten Fake News" selection. In order to satisfy the curiosity of the audience, or for commercial marketing, journalistic professionalism gave way to consumerism. Once the network hot events in the context of "free" communication are mixed with false news or negative public opinion, it not only pollutes the network environment, but also disturbs the normal thinking of college students.