共产党和国民党是中国近现代史上诞生的两大政党，两党先后进行过两次合作，对中国社会的发展起到了很大的促进作用。叶剑英又直接参与了两次合作，并为合作做出了重大贡献。一、一生致力于两党合作，“建议举行中国共产党和中国国民党两党对等谈判，实行第三次合作”。第一次 The Communist Party and the Kuomintang are two major political parties that were born in the modern history of China. The two parties have successively conducted two cooperation and have played a significant role in promoting the development of Chinese society. Ye Jianying also directly involved in the two cooperation and made a significant contribution to cooperation. First, his life dedicated to bipartisan cooperation, “proposed to hold the Chinese Communist Party and the Chinese Kuomintang bipartisan negotiations, the implementation of the third cooperation.” the first time