本文针对国共两党北伐时期在农民运动上的合作状况，做了全面分析。北伐前，两党在农民运动上已有良好合作，一同开创了良好的农运局面，为北伐农运进一步开展奠定了基础。在北伐前期，国共在农民问题上的观点和政策基本一致，在以减租减息为中心的农运斗争中，两党积极合作，取得了重大成绩。在北伐后期随着农运的发展，农民要求土地革命。初时，国共两党均支持并积极推进土地革命；但到了后来，阶级矛盾不断尖锐并反映到国共关系上，在右派叛变的影响下，国民党改变了对农运的态度和政策，压制和镇压衣民运动，导致北伐后期农民运动的失败，国共合作也随即破裂。 In this paper, a comprehensive analysis is made on the cooperation between the KMT and CPC in the peasant movement during the Northern Expedition. Before the Northern Expedition, the two parties had already had good cooperation in the peasant movement and jointly created a good situation in the peasant movement to lay the foundation for the further development of the Peasant Movement in the Northern Expedition. In the early period of the Northern Expedition, the views and policies of the Kuomintang and Communist Party on the issue of peasants were basically the same. In the struggle against peasants and transportation centering on rent reduction and interest reduction, the two parties have made outstanding achievements in their active cooperation. In the late Northern Expedition, with the development of rural operation, peasants demanded the agrarian revolution. At first, both the KMT and the CPC supported and actively promoted the agrarian revolution; but later, the class contradictions continued to be sharp and reflected in the relations between the KMT and the CPC. Under the influence of the mutiny of the right, the Kuomintang changed its attitude and policies on peasant movement and suppressed and repressed The movement of the people led to the failure of the peasant movement in the latter part of the Northern Expedition. As a result, the cooperation between the KMT and the CPC was immediately broken.