In the new era of socialism, the Central Committee of the Communist Party of China, with Comrade Xi Jinping at its core, is focused on the overall governance of the country. By actively exploring and creatively proposing a holistic approach to national security, it adheres to the balanced path of openness and security. This eff ectively addresses the complex changes in domestic and international environments, especially by promoting high-standard opening up through the construction of foreign-related national security, thus achieving better high-quality development and high-level security. This is based on the background, process, and implications of the construction of foreign-related national security, this article elaborates on the key roles of shaping the security of surrounding areas, anti-long-arm jurisdiction mechanisms, protecting maritime rights and interests, and participating in global security governance mechanisms in promoting high-standard opening up. Finally, specifi c paths to promote high-standard opening up include improving the coordination mechanism of surrounding security work, constructing anti-long-arm jurisdiction mechanisms, controlling maritime rights disputes, and leading the construction of a global security governance platform, providing solid national security guarantees for high-standard opening up.