Abstract: Mao Zedong’s theory of “Three Worlds” is a scientific conceptual contribution put forward in the context of the profound changes in the international pattern at that time, which has strongly promoted the evolution of the international pattern and the development of China’s international strategic concepts and practices. Since the 18th National Congress of the Communist Party of China (CPC), the CPC Central Committee with Comrade Xi Jinping as its core has offered a profound insight into the changes in the world pattern and made an important conclusion that “the world today is undergoing major changes unseen in a century” based on the overall strategy of the great rejuvenation of the Chinese nation, which inherited and developed the theory of “Three Worlds”. An in-depth interpretation of the value of the theory of “Three Worlds” faced with the complex situation that involves global major changes can provide important practical implications: China‘s diplomacy in the new era should be conducted to further develop global partnerships, act out the winwin strategy that calls for cooperation and mutual benefit and promote an international united front for peace and development, provide more international public goods with the Belt and Road Initiative as the starting point, and work with the international community to build a community with a shared future for mankind.

Key words: major changes unseen in a century, the theory of “Three Worlds”, international pattern, a community with a shared future of mankind

摘要： 毛泽东提出的“三个世界划分”理论是基于当时国际格局深刻变化所作出的科学论断，有力推动了国际格局的演变和中国国际战略理念与实践的发展。党的十八大以来，以习近平同志为核心的党中央立足中华民族伟大复兴战略全局，深刻洞察世界格局变化作出了“当今世界正处于百年未有之大变局”的重大论断，其中也蕴含了对“三个世界划分”理论的继承和发展。在大变局下深入解读“三个世界划分”理论的时代价值，能够获得重要现实启示：新时代中国外交应深入发展全球伙伴关系、构建互利共赢的国际和平发展统一战线、以“一带一路”倡议为抓手提供更多的国际公共产品，携手国际社会构建人类命运共同体。 

关键词: 百年未有之大变局, “三个世界划分”理论, 国际格局, 人类命运共同体