“公民新闻”(Citizen Journalism)产生于上个世纪90年代的美国,伴随着今天Web2.0时代的到来而兴盛。依托新媒体平台在近几年短期内所表现出的生长力和活跃度已引起新闻传播学界和业界越来越多人关注,作为一股后起力量,它的厚积薄发可以说是给传统的传媒格局带来颠覆性的变化。但由于新闻发布门槛的降低,新闻专业主义真实、准确、客观的标准一度受到前所未有的挑战,本文将从公民新闻发布主体主观和客观两方面来分析公民新闻主体专业弱化现象的成因。 Citizen Journalism, which originated in the United States in the 1990s, flourished with the advent of the Web 2.0 era. Relying on the new media platform in the short term in recent years showed the growth and activity has caused news media and industry more and more attention, as an afterthought, its profound knowledge can be said to the traditional media The pattern has brought disruptive changes. However, due to the lower threshold of news release, the true, accurate and objective standards of news professionalism were hitherto unknown challenges. This article will analyze the causes of the weakening phenomenon of citizen news subject from the subjective and objective aspects of the citizen news release.