Abstract:After theMyanmar National League for Democracy regime came to power，the multi-party democracy continued to develop，but the party politics in Myanmar showed a state of chaos due to the weakness of institutionalization and other problems. The competition between the Democratic League and the Union Solidarity and Development Party，the differentiation，marginalization and reorganization of ethnic minority parties，and the rise of the dark horse political parties，as a whole，is a “three-body pattern”. This kind of pattern followed the “Duforger Law” is the tripartite structure of military parties，elected political parties and ethnic minority parties. The chaotic situation performance specifically including the containment between the military party and the elected party，the minority party dissatisfaction and resistance and internal and external dilemma under the interaction of relative stabilization. The reasons for these phenomena are the existence of “hypocrisy representative” and the useless will to govern，as well as the national development lags behind and the lack of modernity of political party system. Although the military and political game is not only the “safety wire” of the inter-party confrontation，but also the “fuse”.