Abstract：On analyzing the alliance body founded by GMT and CPC, this thesis tries to seek out the reasons of the split of the collaboration and then argues that there was a widespread negative mood existing in the two parties from the very beginning which planted the seeds of the split; the unbalance between the power of the Left Wing and that of the Right Wing determined the split after the alliance was founded; and the split also resulted from the big defects lying in the Neo Three Principles of the People which was served as the political foundation of the collaboration.
