中國崛起的現象對澳洲與日本雙方而言，不僅是一個經濟發展上的機會，同時也是一個政治軍事上的挑戰。究竟要如何接受機會並且同時避免威脅，這個議題因此是雙方在印太區域中所面臨的重要考驗。再者，澳日雙方在二戰後的國家安全都是以與美國簽署的軍事同盟條約為保障，在面對中國積極擴張與憂慮美國孤立主義可能再起的心態下，因此日澳近年在「避險」的思維中積極發展雙邊安全關係，並以澳日雙邊關係為基礎來影響國際或區域多邊關係。一般而言，國家對威脅的主觀認知乃是形塑國家行為與國際互動的重要關鍵，在中國崛起與美中競爭之背景下，本文的問題意識是，究竟澳日雙邊安全關係是如何形成的？其建構方式為何？為回答這問題，本文乃試圖以國際關係領域中「避險」的概念來分析之。

For Australia and Japan, the rise of China is not only an opportunity for their economic development but also a political and military challenge to their security settings. The question of how to seize the opportunity and mitigate threats is therefore an important diplomatic test for both sides in the Indo- Pacific region. Moreover, Australia and Japan’s national security has been guaranteed since World War II through a treaty of military alliance with the United States. In the face of China’s active expansion and concerns about the resurgence of American isolationism, Australia and Japan have been actively developing bilateral security relations in recent years, adopting a “hedging” approach that impacts international and regional multilateral relations based on their bilateral ties. Generally speaking, the intersubjective perception of threat by a state is crucial in shaping its behavior and interaction with the international community. Within this context, the main focus of this article is to examine how Australia and Japan reached a consensus on establishing bilateral security relations and how this consensus is constructed. To address this question, the paper aims to analyze it through the concept of “hedging” in the field of international relations.