With changes of political structures, social relationships and technical advances, the ”Unconventional Warfare” emerged in the 21st century. This kind of warfare is presenting distinguishing features, and I found out that the U.S. military has enhanced its operational adaptability in counter-terrorism operations, guerrilla warfare, foreign internal defense, counterinsurgency and stability operations, etc. In addition, the R.O.C. military now is undergoing ”Defense Transformation”, and this study proposes the use of the concepts and features of ”Unconventional Warfare”, so as to effectively transform the organization of political warfare. We must grasp contemporary transformation trends, connect the dots in the joint operations mechanism, and support the achievement of a variety of military tasks.