New national security (NNS) represents a twenty-first century’s sociological paradigm on which the law is based on and is characterized by multiple actors, wide covering, low predictability, subjective perception, dual nature, and rampant diffusion. The emergence and expansion of the NNS prompts a highly advanced perspective to the rule of law at both the national and international levels, specifically, the relationship between international and domestic law. In this context, traditional approaches, ‘international approach’ or ‘national approach,’ are insufficient, so that a new ‘managerial approach’ is thus needed. The legal practice in relation to national security of China, a rising great power, attracts close attention in the international society. Furthermore, since Chinese conception of national security has its own ‘Chinese characteristics,’ how China will enforce its national security law in the context of international law remains to be seen. The NNS will lead profound sociological transformation upon which all legal orders are based.

I. Introduction
 II. NNS and Changing Landscape ofthe National Security Law
  A. NNS
  B. Changing Landscape of the National Security Law: ThreeGeneral Trends
 III. China’s NSL: Evolution, Content and Debates
  A. Evolution
  B. Content
  C. Debates
 IV. China’s NSL 2015 and International Law
  A. National Security Issue in Chinese International Legal Practice
  B. Enforcement of NSL 2015 in the Context of International Law
 V. Conclusion

• Congyan Cai(Professor of international law at Xiamen University School of Law in China.)