Abstract: Although the Paris Agreement pointed out the direction for global climate governance after 2020,it is still questionableto meet the 2℃ temperature control goalrely on the intended nationally determined contribution(INDC). This article reviewsevery national's emission reduce actions from the perspective of game theory,and classifies the cooperation mode into singleton coalition,Kyoto coalition and grand coalition.The empirical results show that onlysingleton coalition is stable,Kyoto coalition and grand coalitionare unstable.To achieve the ultimate target,the intended nationally determined contribution of all countries still need to be increased. Meanwhile,the keyis whether the developed countries can keep their promise and provide corresponding financial supporttruthfully.