This research paper delves into the intricate relationship between Vietnam and China in the Indo-Pacific region, offering a multifaceted exploration across various dimensions. The study commences with an examination of Vietnam's demographics. The paper proceeds to underscore the growing relevance of the Indo-Pacific for Vietnam, on a strategic perspective. Vietnam's standing in the region is meticulously analysed, taking into account its historical and contemporary positioning amidst evolving regional dynamics. Vietnam's perception of the Indo-Pacific is a pivotal focus, examining its outlook and its strategic priorities within the broader context of regional challenges and opportunities, notably in the South China Sea. The study further delves into the development of Vietnamese South China Sea policy, encompassing territorial disputes and economic interests, culminating in an exploration of Vietnam's grand plan for the South China Sea. A central theme is Vietnam's "THREE NOS" policy, reflecting its judicious and pragmatic approach to regional complexities. The paper delineates Vietnam's efforts to enhance strategic partnerships with major Indo-Pacific powers, including the USA, Australia, India, and Japan, positioning it as an integral player in the regional security architecture. In addition to discussing strategic alliances with powerful nations, the paper offers details on Vietnam-China relations from the 1970s until their postCold War normalisation. In conclusion, the research provides a set of policy recommendations for Vietnam to navigate its complex relationship with China in the Indo-Pacific, emphasizing continued engagement with major powers, strengthening strategic partnerships, and adopting a balanced and pragmatic approach. This comprehensive analysis offers valuable insights into Vietnam's evolving role in the Indo-Pacific and its strategic imperatives.