Abstract: Xi Jinping's important discourse on national energy security represents the Communist Party of China's deepened understanding of energy principles in the new era, making innovative contributions to both energy theory and practice. Theoretically, through the concepts of new-quality energy productivity, diversified energy supply, and low-carbon energy conservation, it achieves the Sinicization and contemporary adaptation of Marxist energy thought, constructing a theoretical framework for energy security with Chinese characteristics. At the practical level, Xi has proposed a "five-pronged" implementation framework. Guided by the strategy of building China into a major energy power, it anchors the direction of China's modernization in the energy sphere. With the people at the center, it establishes the value orientation for energy governance. Using the carbon peaking and carbon neutrality goals as a lever, it reshapes the energy development landscape. Following the path of the "four revolutions" in energy sector, it strengthens the momentum for energy development. Aiming for an energy governance community, it leads the evolution of the international energy order toward a paradigm of win-win cooperation. Xi Jinping's important discourse on national energy security highlights the contemporary significance of energy security from the strategic perspective of the Chinese nation's sustainable development, the historical dimension of a new form of human civilization, and the global vision of a community with a shared future for mankind. It charts the future landscape of energy development and offers innovative solutions for transforming the global energy governance system.

Key words: national energy security, new quality productivity in energy, strategy of building China into an energy power, energy community