从现代新闻业诞生之初，“真实性”就一直是新闻最本质的特征。从业者在日常 新闻操作中发展出了一套以“目击”（eyewitness）为核心的实践策略，来建构和强化 其真实性权威。然而，新闻业的发展历程也一直伴随着对“目击”真实性的怀疑，并 导向对传统的新闻生产方法是否有助于获取和呈现真相的质疑。进入社交媒体时代， 在全球媒体新闻生产范式转型的大背景下，大量出现的“公民目击”为新闻业重构真 实性策略提供了重要契机。基于此，本文尝试从新闻生产的视角，梳理作为一种真实 性策略的“目击”在不同时代背景下的发展历程，从实践层面补充长期以来对新闻真 实性的理论争辩与思考，进而重新诠释和探讨新媒体环境下多元传播主体介入对新闻 真实性观念的重构。

 From the very beginning of modern journalism history, “authenticity” has been the core value of journalism. To establish a cultural authority of truth, a set of eyewitness-centered strategies have been developed in news practice. Nevertheless, the authenticity of eyewitness was always accompanied by skepticism in journalism history which led to a deep doubt on the ability of traditional ways of news production to obtain and present truth. In social media era, the booming of “citizen eyewitness” provides an important opportunity to reconstruct journalism authenticity strategies in the context of globally news production transition. Newsrooms could forge cooperative relationships with their citizen counterparts to seek truth instead of playing the role of adjudicator of truth-claims alone. Based on this, this paper attempts to trace the history of eyewitness as a practical strategy at different times, aiming to supplement the prospective of news production in the long arguments about epistemology of authenticity, then rethink the impact of involved multiple communication actors on the concept of truth of news.