The Internet，a symbol of the contemporary advanced productive forces，is an important Sci-Tech invention in the 20th century. It is the Internet that has changed people’s ways of transmitting information，shortened the time and space distance，and affected people''s lives. Meanwhile，the Internet has had a profound impact on the development of the world economics，politics，culture and society and has promoted the reform of information transmission. Today，the Internet has penetrated all fields of the society.
　　1.Internet in China
　　On September 14，1987，the first email sent by Beijing Computer Application Technology Institute of China symbolized that the Chinese people began to use the Internet from then on. After a long-term continuous technological exploration，on 20 April 1994，the Internet connection with all the functions was finally achieved，which meant that China''s Internet was officially recognized all over the world. Later，the interconnection of the four major Internet made the use of the Internet become popular and paved the way for China’s information superhighway. Today，the development of China''s Internet tends to be diverse. At the same time，Internet users considerably expanded，surpassing the average penetration rate throughout the world. According to the 2011 China Internet Development Statistics Report released by the China Internet Network Information Center (CNNIC)，it shows that until the end of December 2011，there will be 513 million Internet users，356 million mobile phone users in China. The Internet penetration rate will come to 38.3%. 　However，with the rapid development of Internet in business practices，the Internet is manipulated by many illegal businessmen for dishonest gains. Consequently，the network security is frequently threatened and the credit is almost destroyed. Although the government has taken drastic measures to deal with these problems，the situation remains severe.
　　2.The status quo of China''s Internet unhealthy information
　　2.1 The proliferation of unhealthy information
　　Recently，with the rapid development of 3G technology，the media and intelligence functions of mobile phones accelerate and more information is conveyed. The biggest problem China’s Internet industries are facing is the growing proliferation of the unhealthy information. The websites are contaminated by a large number of false information，obscene information，especially pornographic and violent one.
　　According to statistics of China''s Internet Illegal and Unhealthy Information Reporting Center statistics，it reveals that in February 2012，the number of all kinds of reporting information is 71850 in total，which increases by 43.81% compared with that of January and the average daily reporting volume is 2478.Unhealthy information spreads further. Here is the proportion：pornography is 82.4%，fraud 10.3%，tort 2.7%，gambling 0.7%，anti-social morals 0.5%，attacking the party and the government 0.4%，anti-the constitution principle 0.3%，the virus 0.2%，promoting cult 0.1%，private servers hacking 0.1%，other 2.2%. Pornographic proportion is reported to increase by 6.8 % compared with that of January. The number of fraud reporting is second only to that of pornography.
　　2.2 The reason for the existence of the unhealthy information
　　The cause of unhealthy information is mainly for economic benefits. The business field is filled with harsh competitions，in order to increase their amount of information，and increase the click rate，many websites blindly paste all kinds of information，misleading the users. Some large websites rely on the pornographic information to attract more Internet users. Some websites，network advertisers and Internet providers will make underground business，merely aiming at obscene information to make money. The increase in click and flow will bring more advertisements，and therefore they will get more finances to achieve their goal of earning more money.
　　Secondly，there is a lack of supervision in the Internet information transmitting and visiting. As a media，many websites fail to fulfill the social responsibility by allowing the unhealthy information to transmit. The Internet transmission is characteristic of being anonymous，real-time，two-way interaction，which the traditional media can not match. Each user is both the receiver and the sender of information. They can make their own web pages; they can set up their own blog or podcast，and can even release all kinds of information through the BBS anonymously，which offers convenience for the criminals to release their unhealthy information. In order to attract more users，website managers give the green light for a large number of false and pornographic information. And then some criminals use the Internet to engage in illegal activities. The Criminals beguile users with chat dating，false winning，false shopping and false advertising; Hacker spread Trojans and viruses to steal Internet users’ valuable information. 　2.3 The forms of unhealthy information(责任编辑：南粤论文中心)转贴于南粤论文中心: http://www.nylw.net(代写代发论文_毕业论文带写_广州职称论文代发_广州论文网）