本文從建構主義角度對東北亞地區安全合作問題進行探討，以其國際安全合作理論思考推動 東北亞地區安全合作及構建地區安全機制的途徑，結合哥本哈根學派理論和合作安全理論，提出 東北亞地區非傳統安全合作的漸進機制化可以是改變各方觀念的相互作用，成爲建設東北亞安全 機制的中介和途徑，以局部實踐推動觀念變革，再在階段性實踐經驗的基礎上，逐漸發展出機制 化程式，建設真正地區安全機制的基本框架和規範，乃至更遙遠的地區安全共同體。

This article explores the Northeast Asian regional security cooperation from the view of constructivist theory, and hence discusses the pathway of advancing the cooperation and building regional security mechanism using its “International Security Cooperation，，theory. Combining the theories of Copenhagen School and Cooperative Security, the article indicates that the progressive institutionalization of Northeast Asian non-traditional security cooperation would exert influence on the interactions of ideas between the regional actors, and would play the role of intermediary in building regional security mechanism. In other words, the procedures are promoting the change of concept through partial practice, and then developing a mechanism or institution under the basis of interim practical experience. And after all, it will build the basic framework and specifications for construction of a truly regional security mechanism, and even security community in future.