2022 年俄烏戰爭引起臺灣大眾熱烈的關注與討論，新聞媒體或政治人物也常把烏克蘭與俄羅斯的處境拿來和臺海兩岸議題進行比較。本研究目的試圖探討俄烏戰爭訊息對臺灣政治參與的影響，以及了解戰爭訊息與臺海兩岸的風險感知、焦慮彼此之間的關係。本研究採用問卷調查法的方式，並以結構方程模型 （SEM）進行資料分析。研究發現受訪者對俄烏戰爭的訊息涉入度越高，政治參與也會越高，但並不影響臺海兩岸的風險感知。兩岸的風險感知主要還是受到兩岸的資訊涉入度影響，並且最後只會影響大眾的焦慮感，並不影響政治參與。 本研究與過去戰爭或政治參與的研究相比，試圖在學術上驗證一般大眾對於戰爭的資訊涉入度與政治參與兩者間的關係，並提供一個新的觀點，對於他國的戰爭資訊是否會影響本國自身安全的風險感知進行一定程度的檢驗。也提供實務界未來進行政治傳播可參考之資料，以利對政治溝通的發展有所貢獻。 

 The 2022 Russo-Ukrainian war has sparked heated discussions among the public in Taiwan. News or politicians often compare the situation of Ukraine and Russia with cross-strait issues. The study is to explore the impact of war information on political participation and to understand the relationship between war information, cross-strait risk perception, and anxiety. The study used questionnaires and analyzed data using structural equation modeling (SEM). The results show that the higher the information involved in the Russo-Ukrainian war, the higher the political participation, but it does not affect the cross-strait risk perception. Cross-strait risk perception is mainly affected by cross-strait information involvement, which will only affect the public's sense of anxiety, not political participation. Compared with past studies of war or political participation, this study attempts to verify the relationship between war information involvement and political participation in the general public. In addition, it provides a new perspective on whether other countries' war information will affect the risk perception of national security. In practice, it also tries to contribute to the development of political communication.