In recent years, China's social network has developed rapidly with a significant amount of new software and social network users. However, the government has a strict policy on freedom of expression in social networks. The benefits of improving freedom of expression on social networks have been widely debated. While some expect a greater degree of freedom to speak freely and easily express real thoughts, others worry about the order of the Internet. This article examines both the arguments for and against improving freedom of expression in social networks and provides suggestions based on these arguments. A number of netizens strongly support the elimination of the sensitive words shield. Yang's (2003) research has shown that sensitive word shielding makes it more difficult for some netizens to write down some thoughts, and these users are forced to use words that look or read similar to sensitive words. The consequence is that the sensitive words filtering system causes difficulties in people's writing and reading, but it makes no sense on network security or network environment. It is not correct to continue with this policy of controlling sensitive words due to its immense side effects (Financial Times, 22 Match, 2011, p.6). Some people, including government officials and ordinary people, however, have different opinions on sensitive word filtering, they say that several reports have shown that setting up a sensitive word filtering system is a world-wide approach for a better network environment (Klensin & Khare, 2003). In America, for example, some words are on the list of the Department of Homeland Security to monitor the security of the country. Furthermore, swear words on the Internet are widely banned throughout the world... half of the paper...ina will have a rapid development that can satisfy both the government and Internet users. References Yang, G., 2003. The Internet and civil society in China: a preliminary assessment. Journal of Contemporary China, 12(36), pp.453-475. Levmore, S. and Nussbaum, M.C., 2010. Offensive Internet: Speech, privacy and reputation. New York: Harvard University Press.Klensin, J. and Khare, R., 2003. US Method and System for Internet Access Control. Washington DC: United States Patent and Trademark Office. Ratkiewicz, J., Conover, M., Meiss, M., Gonçalves, B., Flammini, A. and Menczer, F., 2011. Detecting and monitoring political abuse in social media. In ICWSM.Xi, R., 2005. The Internet, Free Speech, and Social Transformation: An Examination of the Impact of Cyber-Forums on Decision-Making in China (Doctoral Dissertation, State University of New York at Buffalo).