As the Korean Peninsula was completely colonized by Japan in 1910, many Korean revolutionary ideologues went into exile and launched an indomitable national independence movement in China. At the same time, they also wrote articles, published books, magazines and had extensive and in-depth exchanges with intellectuals in China. Since the establishment of the New Asia Alliance Party with Korean students in Japan in 1916, Chinese intellectuals such as Huang Jiemin and Korean independence activists have been inseparable, and their interaction and collision of ideas are of great significance in the history of ideological and cultural exchange between China and Korea in modern times. In pursuit of their respective national independence and liberation, they took the Datong Party as the exchange position, “human equality and cosmopolitanism” as the fundamental tenet , nation salvation and survival as the first duty to cooperate. The members of Datong Party always stressed the importance of helping Korea to win national independence and hoped that the Chinese government could talk to Korea based on mutual equality, then Korea will also contribute to the Anti-Japanese War. Since the early days of the activities of the Datong Party, Chinese intellectuals and Korean independence activists have attached great importance to the joint resistance against Japan by China and Korea, and expressed their ardent hope for the two peoples to join hands to fight against the enemy. After the victory of the Second Sino-Japanese War, Huangjiemin also expressed his expectation for the new Korea and hoped to establish a new country with a new look of freedom and equality on the basis of the cosmopolitanism when he sent important officials of the Korean Provisional Government back to Korea. The establishment and activities of groups like Datong Party show that in the face of the Japanese imperialist hegemony, China and Korea cooperated with each other to confront the enemy on the basis of equality and mutual assistance, which reflected the dialogue and mutual learning of the thinking and ideas of the insightful people of China and Korea in modern times. The common discourse and mutual cognition between the intellectuals of China and Korea left a profound mark in the history of east Asian civilization exchanges in the 20th century.