Since the birth of the Internet, in just a few years, it has greatly changed people's social production and lifestyle. The speed of information dissemination has reached a level that human society can never surpass. When people enjoy high-tech achievements, they are also considered as a double-edged sword. Network and irrational communication are gradually becoming a "time bomb" hidden in the center of human information exchange. It confuses the authenticity of information and pushes online public opinion to a distorted track. Therefore, it is of great significance for contemporary media workers to understand and analyze the causes of its irrational communication and control its wanton means of communication. Through some concrete examples, this paper analyzes the irrationality and its harm in network communication, and puts forward some countermeasures to solve the problem, and puts forward some prospects for the core problem of "how to guide network public opinion in a healthy and positive direction". Share it.