自很久的歷史以來﹐越南與其他東南亞國家基於地緣因素已經有了類似的文化基礎﹐同時也是永遠不變的自然鄰國。不僅如此﹐越南與這些國家都是中小國﹐從古代到近代幾乎都受到了區域外大國的壓迫﹐成為大國之間你爭我奪和擴大影響範圍的目標。 基于此理﹐越南與名為東南亞國家協會的區域組織之關係可以說是「同病相憐」而應該友好﹔但由於歷史的種種原因﹐雙方的關係卻變得比較複雜。自東協於1967年成立以來﹐越南東協關係有升有降﹐時沉時浮﹐從對頭轉為對話﹐從敵人成為朋友。透過分析在各個時期的越南東協關係﹐包括雙方的看法以及影響越南東協看法的各種因素﹐本論文將解釋此一關係的變化﹐從而得出了最後的肯定﹕越南需要東協﹐而東協也需要越南。越南1995年加入東協是得到各方歡迎的必然結果﹐對本國以及整個東南亞區域來說已經帶來了積極影響。 雖然在加入後的越南東協關係發展過程中﹐在各方面上所得到的可喜成就之外還存在一些障礙﹐但越南東協關係會一直向前﹐東協在越南對外政策中會起著日益重要的地位。而越南的更加融入也會讓東協不斷茁壯﹐為實現一個和平､穩定､合作的東南亞地區創造順利的條件。

中國與東南亞之間有著深厚的地緣關係及無法切割的民族情感；但處於現今經濟快速成長的時代，在能源需求量急速擴張的競爭中，尋求能源供應、保護能源安全，已經是刻不容緩的手段，因此，利用各種外交方式及合作方案來達成此目的，是中國目前所採取的積極作為，冀望在最安全、便利的狀態下獲取、保護最大的能源需求及供應。 東南亞的能源儲藏及供應量，並非是中國能源需求的重要核心地區，但是它位處中國外圍，掌握麻六甲海峽的戰略要衝，以及豐富的天然氣存量，引發各國對此區域的爭奪。再面對此一局勢，中國便加速推動以「和諧世界」為理念，發展「與鄰為善、以鄰為伴」以及「睦鄰、安鄰、富鄰」的外交政策宗旨，進行能源外交及戰略，以爭取能源需求量和鞏固區域內的能源運輸安全及穩定雙方的合作關係。本文即從能源外交策略及作為的架構與理論，就中國對東南亞能源外交的挑戰與競逐做一研析，試圖觀察、探究從雙方的合作關係中所衍生出的問題及產生的困境，以及如何利用外交方式獲得解決之道，並營造出具有前瞻性的宏觀願景。 / Southeast Asia and China are closely connected to each other from the geographical and historical aspects. In the competitive time characterizing with fast economy growing and demands for energy expanded enormously, it has become an urgent measure for China to search for continuous energy supply and protect the energy resources. Today, the initiatives China seeks for is to achieve by means of diplomatic channels. It is hoped that the energy can be acquired by the safest and convenient ways, making sure the maxima energy supply can be assured. Frankly speaking, China did not deem the energy reserves and energy-provide ability of Southeast Asia seriously except that that area locates in the periphery of China, holds an important strategic point for the Strait of Malacca and its abundant natural gas reservoir, all of this attracting fierce competitions among nations. Being beware of this, China therefore based on the idea of “harmonious world” increasingly promotes the diplomatic policies, such as “Good-Neighbor Diplomacy” and “Good-neighborliness, Peaceful-neighborliness, and Prosperous-neighborliness,” engaging in energy diplomacies and strategies with an eye to expanding energy resources, fortifying energy transportation safety within the area, and stabilizing the corporative relationship with the area. Based upon application and theories of energy diplomatic strategies and actions, this thesis analyzes the challenges and competitions that China faces when carrying on energy diplomacy. By observing and exploring the problems and predicaments derived from the cooperative relations of the two sides, we hope that a workable resolution and a proactive vision on energy can be reached via diplomacy.