本文從「話語表徵」和「敘事建構」的視角出發，對微博上有關新聞自由的討論與書寫進行個案研究，旨在通過此個案來揭示微博話語如何建構一套關於新聞自由的論述。本文首先考察了作為論述和討論主體的微博使用者的身份特徵，並以此身份特徵為基點，系統分析新聞自由話語的幾個維度：即什麼是新聞自由？我們有沒有新聞自由？以及我們需要什麼樣的新聞自由？這三個維度又與以下敘事模式和話語實踐相對應：一是從政府、媒介和公眾三者的矛盾關係出發闡釋新聞自由；二是關於新聞自由話語的悲觀主義與懷舊主義色彩；三是敘事模式的美國中心主義傾向。

From the perspective of "discourse representation" and "narrative construction ", this article carries on case study about the freedom of the press on micro blog, which is aimed to reveal the way through which micro blog constructs the press freedom discourse. The paper first examines the identity of the micro blog users, and then analyzed different dimensions of discourse of the press freedom: what is the freedom of the press? Do we have the freedom of the press? And what kind of freedom of the press do we need? The three dimensions is also corresponding with the following narrative pattern and discourse practice: first is explain the press freedom from the perspective of contradictory relationship between government, media and the public ; second is the tendency of pessimism and nostalgia doctrine about the discourse of the press freedom; and the American centralism is the third narrative patterns.