从“九一八”事变开始的抗日战争 ,对国共关系的演变有着深刻的影响。出于对“九一八”事变的错误认识 ,国共之间的敌对关系进一步强化和加深。然而正是抗日战争发展的需要 ,最终使国共两党从对立走向合作。国共合作是抗日战争胜利的根本保证。抗日战争的进程 ,影响和改变着国共合作的内容和形式。国共合作的走向 ,决定着抗战胜利后中国的前途及命运 The war of resistance against Japan, which started from the September 18th Incident, had a profound impact on the evolution of the relations between the KMT and the CPC. Out of the misunderstanding of the September 18th incident, the rivalry between the Kuomintang and the Communist Party has been further strengthened and deepened. However, it was the need of the development of the anti-Japanese war that eventually led the two parties to move from opposition to cooperation. The KMT-CPC cooperation is the fundamental guarantee for the victory of the Anti-Japanese War. The process of the Anti-Japanese War affected and changed the content and form of the cooperation between the KMT and the CPC. The direction of the cooperation between the KMT and the CPC determines the future and destiny of China after the victory of the Anti-Japanese War