Abstract: The modernization of the national security system and capacity is an important part of the modernization of the national governance system and capacity. Only by taking reform and innovation as the driving force and striving to improve a systematic, complete, scientific and efficient national security system can we fundamentally step up the coordination and improve the efficiency of national security work, and attain strategic sovereignty in safeguarding national security under complex situations. The formation, accumulation, and application of national security strategic capability require proactive coordination of resources and strength, in order to achieve a basic equilibrium between strategic capability and strategic objectives, responding to and preventing major strategic risks, and creating a favorable situation for national security. Only by strengthening the certainty of Chinas development and progress can we effectively cope with the uncertainty of the external environment. The modernization of the national security system and capability also needs to be assessed by the practice of safeguarding national security under the conditions of openingup. Only by promoting positive interaction between China and the outside world can domestic and international security governance promote and support each other. The more severe and volatile the external environment becomes, the more necessary it is to maintain strategic sobriety, be good at understanding, adapting, and grasping changes in conditions concerning security, and adopt a coordinated approach and be wellgrounded in making advances or beating a retreat in the everbroader field of time and space, so as to sustain peace and stability in the country.

Key words: national security system, strategic capability, new security architecture, national security under the conditions of opening-up

摘要： 国家安全体系和能力现代化是国家治理体系和治理能力现代化的重要组成部分。只有以改革创新为动力，着力完善系统完备、科学高效的国家安全制度体系，才能从根本上加强对国家安全工作的统筹力度，提高国家安全工作效能，赢得在复杂局势下维护国家安全的战略主动。国家安全战略能力的形成、积累和运用，要求能动地调度、统筹资源与实力，努力达成战略能力与战略目标的基本平衡，应对和防范重大战略风险，营造国家安全有利态势。强化自身发展进步的确定性，才能有效应对外部环境的不确定性。国家安全体系和能力现代化也需要在开放条件下得到维护国家安全实践的检验。推动中国与外部世界关系良性互动，才能实现国内安全治理与国际安全治理相互促进相互支撑。外部环境越是趋向严峻多变，越是要保持战略清醒，善于认识、适应和把握安全条件变化，在日益广阔的时空领域中统筹兼顾、进退有据，实现国家的长治久安。

关键词: 国家安全体系, 战略能力, 新安全格局, 开放条件下的国家安全