這碩士論文的目的是研究非傳統安全問題在東北亞地區安全困境發揮作用的程度和意義，並了解正式和制度化安全管理，在該地區連續失敗背後的原因筆者在以下研究中列出多個任務，包括了以下主要目標提供一個非傳統安全問題的全面，但簡化的概念附著到該地區的安全困境，並威脅其穩定性;提供一個具體的非傳統安全的情況下，研究基於政策的分析選定的國家，從而來了解和承認它的意義. / The purpose of this master thesis is to study the degree and significance of role played by unconventional security problems in the Northeast Asian security dilemma and understand the reason behind continuous failures to formalize and/or institutionalize security governance in the region. The author in the following research sets out multiple tasks, which include the following principal goals: provide a comprehensive but simplified conception on non-traditional security issues adherent to the region’s security dilemma and threatening its stability; offer a concrete case-study of unconventional security based on policy-analysis of selected countries, which helps to understand and acknowledge its significance; analyze instititionalism against the backdrop of Northeast Asia’s specificity concerning the lack of strictly formal organizations; and last but not least develop an idea of how and whether cooperation in non-traditional security issues can lead to the improvement of security governance in the region.