The policy of Singapore defense has been developing a military strategy of deterrent capability of preventing from threats, It is also known as ”poisonous srimp” theory, since the beginning of independence in 1965. While economy was built up and armed force progressed rapidly by the 1980s, Singapore brought the idea of ”porcupine” military strategy that is not to fight until death with enemy, but rather to survive after conflict. In the recently years, Singapore's military strategy is gradually transferring to possess a preemptive deterrent capability as the 3rd generation of armed force transformation. It therefore becomes a small but strong power country.Singapore's military strategy embodies throughoutly all levels of entire country. The success of strategic development derives from a virtuous cycle which covers with the implement of military strategy, the core of national interests, the pillars of Total Defense(TD), the means of military and diplomacy to enhance Singapore's security, predominance of technology and the foundation of human resources. Accordingly, the economy will be prospered eventually by the effectiveness of synergy mentioned above. Finally, the financial support infuses into national security system continuously for the achievement of national grand strategy.In the world map, it is hard to notice a Little Red Dot of Singapore surrounded by neighborhood countries. Theoretically, a small country is not easy to keep survivability and to hardly affect the international society. Nevertheless, Singapore indeed reverses the point of view on small country being incapable of power to influence in a regional arena under the international circumstance of globalization and complication. Undoubtedly, Singapore breaks through the limitation and exploits its superiority to continuously play an important role in Asia and even in the whole world.