The Internet has brought about an epochal change in the means of human information communication, but with it comes a new type of disease – pathological Internet addiction. When Internet addiction is elevated to the category of pathological psychology, it means that it has jeopardized the physiological and psychological health of human beings. Network addiction is mainly manifested in the following five aspects: 1. Online game addiction: Electronic virtual game addiction makes people decadent in reality, and only in virtual games can their emotions rise, which is especially harmful to the study and work of teenagers, and can lead to autism, cruelty and violent tendencies in serious cases. Yang Lianjun, Department of Pathology, Coal General Hospital 2, Internet pornography addiction: addictive Internet search and downloading of adult films and pornographic photos can lead to threshold elevated impotence or sexual frigidity in serious cases, and may even lead to sexual perversion. 3, Internet relationship addiction: a person who has a thousand followers in the microblogging world may not be followed at all in reality. Online relationships often end up seeing the light of day. Long-term relationships that stay in the online dating stage often lead to physical and mental exhaustion and inability to integrate into the real world. 4, network information addiction: free to see if you have received Email, there is no MSN and QQ and other instant messaging software messages, wasting a lot of time. In fact, most of the information from the network is useless spam, even if not timely check will not have a negative impact. Some students have collected a lot of study materials from the Internet, but can not digest 1% of them, it is better to step down to the accuracy of a book. Some Internet users even develop anxiety and a passive personality for fear of missing information. 5, network trading addiction: do not have to go online shopping also go online to buy, constantly search for bargains, participate in network auctions and so-called “seconds”, often buy some useless non-essential goods. The longer a person stays in the virtual world in front of the computer, the shorter the time he lives in the real world. The virtual world not only takes up a lot of one’s time, but also may cause one to work and study in the real world because one’s mind is still stuck in virtual fantasy. In modern society, no one can communicate with each other online, but excessive Internet access is really harmful. Advise all computer surfers, the Internet is only a tool for information exchange, not a substitute for reality, all problems must also be solved in reality.