新闻舆论监督被视做立法、行政、司法以外的第四种权力，在人们的生活中发挥着重要的作用，该论文通过分析新闻舆论监督作用的重大历史责任，阐明由于信息化时代的催化和文明进程的需要，使得它在全面建设小康社会的历史进程起到了不可代替的积极作用。其中论文分别从政策法规，重大事件及社会公共事业，人文道德领域，廉政建设与反腐败斗争等方面说明新闻发挥其舆论监督的四个作用。又从实现新闻舆论监督的法制化，新闻工作者要树立高度的社会责任感、提高自律性以及要坚持新闻舆论监督的三个基本原则等方面说明了如何有效地发挥好新闻的舆论监督作用
舆论 新闻舆论监督 受众 言论自由

The news supervision of public opinion is regarded does outside legislative, administrative, the judicature's fourth authority, is playing the vital role in people's life .This paper through the analysis news supervision of public opinion role's significant historical responsibility, expounded that as a result of the informationization time's catalysis and the civilized advancement's need, caused it to play the positive role which in the comprehensive construction affluent society's historic course could not be replaced. And the paper separately from the policies and regulations, the big event and the social Non-profit organization, the humanities morals domain, the cultivation of clean government with aspects and so on struggle against corruption explained that the news plays its supervision of public opinion's four roles. Also from realizes the news supervision of public opinion's legalization, the journalist must set up the high social responsibilities, enhance the automatic rhythmicity as well as must insist that news supervision of public opinion's aspects and so on three basic principles showed how to display the good news effectively the supervision of public opinion function public opinion news supervision of public opinion the numerous freedom of speech .