Nontraditional security has become the main consideration as many countries researched into national security, which no longer belongs to army’s duty only. Instead, it is also a mutual issue that all the people should care about, This is why many countries all over the world now put emphasis on all out defense. In the present stage the military strategy of ROC is in accordance with the "all-out defense mobilization" policy, which is based on “effective deterrence and resolute defense”, that goal is to build the counter-strike and defensive capabilities with deterring effects, and to resist the invasion, therefore, the core of national defense strategy is the all-out defense policy with strong defense capability. Analyzed by the aspects of demanding, policy, and executing, the practicable target of our all-out defense policy is “the total nation in arms,” The key to achieving this policy is the morale of citizenry and the will of resisting the invasion, the resolution of the people and the common consensus of the whole society which are promoted in “civilian-based defense. If civilian-based defense is considered by advancing the all-out defense policy, the theory will be more substantial, and contribute to achieving the strategic target of the all-out defense mobilization policy.