The establishment of the National Security Commission （NSC） is a great decision at the third Plenary Session of the eighteenth CPC Central Committee，a major action for the CPC’s reform itself and improvement of national security system，as well as one of the most important events in the research field of China’s national security affairs in the year of 2013. In today’s world，there are more and more NSCs or similar mechanisms that are set up likewise in different countries and regions. Despite different names，concrete backgrounds and functions，most of these commissions，belonging to top designs of national security system，were set up after the Cold War and continually played an irreplaceable role in the maintenance of national security. The establishment of China’s NSC，discussed for years，is a long-expected step and won great applauds in the current security situation of the year of 2013 at home and abroad. As the highest organ for deliberation and coordination of national security issues，China’s NSC would integrate the domestic and international security situations，formulate and implement national security strategies，promote the rule of national security laws，formulate principles and policies concerning national security and research and solve big national security problems. With the official operation and improvement of NSC，China’s national security would be more guaranteed，and NSC’s advantages and effectiveness will continue to appear.