This paper aims at examining how disaster management has contributed to the development of soft power on diplomacy. This issue is important since disaster has been a recurring phenomenon, which often develops negative sense among citizens and government exposed by it. However, it can be modified into a positive social capital to solve economic, political and social-cultural problems as well as to develop prospective cooperation among states. Indonesia is one of the most disaster-prone countries in the world. Indonesia has developed disaster management system including structural initiatives such as certain regulations and acts, as well as special agencies which cope with disaster issues. Indonesia’s responses toward disaster have shown its quality on disaster management system. Indonesia has demonstrated government’s behavior that saved lives and prevented a large-scale humanitarian crisis through behavioral power, which comprises of behavioral norms, organizational skills, and planning. A lot of international recognition and appreciation for its effective, efficient and well-organized disaster responses have enhanced their attraction in the world. It is the phenomenon of soft power.