Over the past decade, guided by the overall national security concept, China has firmly grasped the initiative of development and security in the rapidly changing international situation. National security has been comprehensively strengthened, and the construction of a safe China has reached a higher level, providing strong security guarantees for the great cause of national rejuvenation in building a strong country. The overall national security concept - the fundamental principle and action guide for national security work in the new era. Opening the report of the 20th National Congress of the Communist Party of China, the requirement of "promoting the modernization of the national security system and capabilities, resolutely maintaining national security and social stability" is particularly prominent. This is the first time that the report of the National Congress of the Communist Party of China has made a special chapter deployment on national security. We must firmly implement the overall national security concept, integrate the maintenance of national security into all aspects and processes of the Party and state work, and ensure national security and social stability. Currently, the world's unprecedented major changes are accelerating, and the great rejuvenation of the Chinese nation has entered a critical period. Strategic opportunities and risks coexist, and uncertain and unpredictable factors are increasing. Various "black swans" and "gray rhinoceroses" events may occur at any time, and various risks and challenges are unprecedented. The realization of the great rejuvenation of the Chinese nation and the realization of the Chinese Dream, ensuring the well-being of the people and national security are of paramount importance. Those who observe the situation are wise, and those who control the situation win. With a keen insight into the new characteristics and trends in the development and changes of the national security situation, and an in-depth summary of the historical experience of national security work, the overall national security concept, as a scientific theoretical system, has emerged. Highlighting the key with a "holistic" approach, emphasizing the concept of grand security, and adhering to a systematic approach - entering a new era, the connotation and extension of China's national security are richer than at any time in history, and the temporal and spatial domain is broader than at any time in history. Covering various fields such as politics, military, national territory, economy, finance, culture, society, technology, and the internet, and will continuously adjust dynamically with social development; Strengthen scientific coordination and focus on solving the problem of imbalanced and insufficient national security work; Emphasis is placed on integrating the maintenance of national security throughout all aspects and processes of Party and state work... The overall national security concept embodies a profound systemic concept, reflecting a holistic, holistic, and holistic perspective. On December 11, 2020, the Political Bureau of the Central Committee of the Communist Party of China held the 26th collective study on effectively doing a good job in national security work, clarifying the core principles, direction and path with the "Ten Adherences" to guide practice. Adhering to the absolute leadership of the Party over national security work, adhering to the path of national security with Chinese characteristics, taking people's security as the purpose, and coordinating development and security... The "Ten Adherences" systematically integrate and refine the overall national security concept, deepening, expanding, and elevating the understanding of the regularity of national security work