冷戰結束後，東協在安全機制上的轉變可以用Ernst B. Haas 的「逐步成長模式」（incremental growth model）及「管理互賴模式」（managed interdependence model）做出學理的分析。在多邊機制的運作下，東協得以制訂成員都接受的規範，並透過逐步成長的適應（adaptation）或管理互賴的學習（learning）的方式，進行區域安全制度的建立與變革。本研究將進一步確定到底是內生的（endogenous）還是外來的（exogenous）因素造成東協在安全合作制度上的緩慢改變。然後經由前述的研究方式，並配合實地訪談的作法，本研究目前藉由Haas 的研究發現而暫時假設：（一）此種改變的動力很可能是以外來的因素為主；（二）東協內部成員國的社會化所帶來的「共識型的知識」（consensual knowledge），以及逐漸擴大的「知識社群」（epistemic community），亦促使「東協安全共同體」的誕生。換言之，追求自立自主的東協試圖以緩步慎進的方式來適應區域安全情勢的變化，並去學習其他地區的經驗，在微調國家主權內涵但不更動主權完整的政治宣示下，試圖建立有東南亞特色的「東協安全共同體」。在驗證前述的假設與分析後，本研究的附帶目的為，研判東協在日後可能會採取何種途徑以作為「東協安全共同體」的運作模式與規範，同時對「東協安全共同體」日後組織與規範的演變有所掌握。 The changing security mechanisms of the Association of South East Asian Nations (ASEAN) can be theoretically analyzed on the basis of the “incremental growth model” and the “managed interdependence model” proposed by Ernst B. Haas. Under the multilateral frameworks and mechanisms, ASEAN is able to create norms universally accepted by its member states in order to facilitate the establishment and evolution of security institutions via adaptation through incremental growth or learning to manage interdependence. This research finds out that it is both endogenous and exogenous factors that cause a slow change in ASEAN’s institution on security cooperation. Based on the foregoing theoretical research approach and interviews in some of the Southeast Asian countries, this research argues that the endogenous factors may be influential but those alone such as the socially constructed consensual knowledge resulting from the socialization of ASEAN member states and increasingly enlarged “epistemic community”do not seem able to explain the birth of the ASEAN Security Community (ASC) effectively. One still has to look at exogenous factors resulting possibly in the idea of a security community in Southeast Asia. Through the careful examination of these exogenous factors, one can better understand ASEAN seeking autonomy and independence has adapted to changes in regional security in a deliberately progressive way. Moreover, ASEAN has learned from other regions’ experiences and tried to establish a security community by persisting in the definition and proclamation of national sovereignty and avoiding any challenge targeting ASEAN’s basic value, in order to create an ASC (called the ASEAN Political and Security Community after the signing of the ASEAN Charter) with Southeast Asian characteristics. Having tested the validity of these assumptions, this research expects a very slow change in the institutional form and norms of ASEAN. On the one hand, ASEAN will use the “incremental growth”approach to deal with dramatic changes of its external environment and prevent its existing values from being affected; on the other hand, it will move through the “managed interdependence”approach to review the suitability of its policies and values in order to strengthen cohesion among member states.