Abstract: The representative Liu-yazi and many Nan-Community members had an argument about tang and song poems which used Min-guo daily as position and the poetry theory published by the newspapers and periodicals as weapon,then it turned to political conflict.The reason was complicated including the social circumstance influence and literary situation transform.It was not only a poetry controversy,but also a mutual disputation about political and cultural influence.The argument not only brought NanCommunity disaggregation but also the last conflict and it became the downfall symbol of the classical literature.