隨著北極新航道的開發，以及該區域石油、天然氣等戰略資源價值日益浮現，全球供應鏈與國際安全格局正出現新的變化。本文以結構現實主義為理論基礎，採質性研究方法，探討北極與印太兩大區域中，美、中[1]、俄三國在地緣政治與軍事競爭上的互動關係。研究指出，三國在軍事部署、經濟利益與外交聯盟上的布局，構成其戰略互動的重要因果脈絡。研究發現，若北極航線未來對印太海上通道形成替代效應，將可能改變美、中兩國的戰略地位；同時，美、中、俄三強競逐亦呈現出雙重戰線的戰略態勢，使得北極成為牽動印太安全格局的重要戰略制高點，並且對於未來全球安全秩序的重構，具有關鍵意涵。

As emerging Arctic sea routes and the region’s vast reserves of strategic resources—such as oil and natural gas—come to the forefront, significant transformations are unfolding in the global supply chain and international security landscape. Grounded in the theoretical framework of structural realism and employing qualitative research methods, this study investigates the strategic interactions among the United States, China, and Russia in the Arctic and Indo-Pacific regions amid intensifying geopolitical and military competition. The research demonstrates that the military, economic, and diplomatic alliance arrangements among these great powers form the causal basis of their strategic interactions. The findings suggest that if Arctic maritime routes were to supplant Indo-Pacific sea lanes, a shift in the strategic positioning between the United States and China would ensue; furthermore, the ongoing great power rivalry is evolving into a dual-front strategic configuration, positioning the Arctic as a pivotal strategic high ground with profound implications for reshaping the future global security order.