1919年，基于革命形势的需要，共产国际成立。共产国际在其存在期间，大力传播马克思列宁主义，帮助各国共产党的建设，成立反法西斯统一战线，促进了国际共产主义运动的发展。但同时，共产国际在组织和管理体制等方面也存在一些弊端，产生了一些不利影响。在共产国际成立100周年之际，回看共产国际的历史功绩，吸取其教训，探寻更恰当的联合方式，以推动世界社会主义运动的进一步发展，是研究共产国际的现实意义所在。
In 1919，the Communist International was founded based on the needs of the revolutionary situation. During its existence，the Communist International vigorously spread Marxism-Leninism，helped build communist parties in many countries，established an anti-fascist united front，and promoted the development of international communist movements. But the Communist International also had some disadvantages in the organization and management systems，which produced some adverse effects. On the occasion of the 100th anniversary of the founding of Communist International，it is of practical significance to studying Communist International by reviewing its historical achievements，drawing lessons from it，exploring more appropriate ways of cooperation in the world socialist movements and promoting the development of world socialist movements.
