Recently, as the U.S. and China's hegemony competition has intensified, a new Cold War is being formed in East Asia where the world's military power is concentrated, and the security crisis is increasing, such as the continuous increase of North Korea's nuclear threat. This study examined the national crisis management system of the previous regimes in Korea and analyzed the laws and regulations related to the national crisis management, the organizational system, the control tower, and the consultative body to suggest the direction of the development of the national crisis management system that can cope with the future crisis situation. As a result, in the legal system field, the enactment of the “National Crisis Management Basic Act” which is the most basic of the national crisis management system is essential, and the grading of the national crisis alarm and the supplementation of the national crisis management stage were required. The organizational system and control tower suggested a plan to strengthen the function of the national emergency preparedness while controlling the crisis management in the disaster field by organizing the national crisis management execution control tower in the prime minister's office while the national security office serves as the control tower for the national crisis management. In addition, the councils operated according to individual laws and regulations were proposed to unify into the National Crisis Management Council so that they could cope efficiently if a large-scale crisis occurs simultaneously. Like the “Umbrella on a Clear Day,” the crisis is not predictable, and what is expected, prepared, and not known is the difference between heaven and earth. The crisis situation that will come in the future should be recognized as a scale and form beyond the imagination of mankind, and should be supplemented and developed by law, system and organizational system.