进入信息时代以来，数字技术广泛渗透进传统新闻传播、公共外交的应用实践中，催生了其理论、实践范式的数字化迭代与信息化演进。本文以数字化公共外交为研究主题，以理论、历史、实践三结合的视角对该现象展开宏观探索与分析；在理论层面，本文建立了数字化公共外交与主体间性、技术哲学、后现代主义哲学的理论联结，指出了其出现的理论必然与历史必然，同时，综合性分野了数字化公共外交运作的四种模式，即“主客模式”“斗争模式”“威权模式”“和合模式”以及“去中心”“去单向”“去单媒”“去疆界”“去时延”的五类特质；在历史层面，本文对数字化公共外交的历史沿革进行了梳理分析，厘清了其发展变化的四个阶段，即萌发阶段（上世纪90年代）、发展阶段（2000-2007）、兴盛阶段（2007-2014）和波折阶段（2014至今），并总结性探索了其演进中的特质规律；在实践层面，本文对中国数字化公共外交实践展开典型案例分析，以散点拟合之方法分析了相关推文热度与时间要素的变化关联，并指出了中国数字化公共外交实践的周期性、趋势性特质，以为未来中国数字化公共外交实践提供数据支撑与研究参照。

Since entering the information age, digital technology has widely penetrated into the application practice of traditional news communication and public diplomacy, giving birth to the digital iteration and informatization evolution of its theoretical and practical paradigms. This article takes digital public diplomacy as the research theme, and explores and analyzes the phenomenon from the perspective of the combination of theory, history, and practice; at the theoretical level, this article establishes digital public diplomacy and intersubjectivity, philosophy of technology, and philosophy of postmodernism. The theoretical connection of the theory points out that the theory of its emergence is inevitably and historically inevitable. At the same time, it comprehensively divides the four modes of digital public diplomacy operation, namely the "host-object mode", "struggle mode", "authoritarian mode", "harmony mode" and "departure mode". The five characteristics of “center”, “de-one-way”, “de-monomedia”, “de-boundary” and “de-delay”; at the historical level, this article combs and analyzes the historical evolution of digital public diplomacy, and clarifies the four aspects of its development and changes. Three stages, namely the germination stage (1990s), the development stage (2000-2007), the flourishing stage (2007-2014) and the twists and turns stage (2014-present), and summarized the characteristics of its evolution; in practice At the level, this article conducts a typical case analysis of China's digital public diplomacy practice, analyzes the relationship between the popularity of related tweets and time factors using the method of scatter fitting, and points out the cyclical and trending characteristics of China's digital public diplomacy practice. In order to provide data support and research reference for China's digital public diplomacy practice in the future.