China and foreign cultural exchanges are one of the pillars of China's foreign exchanges.From the theoretical perspective of international public relations，this essay would review the main construction processes of China and foreign cultural exchanges mechanism since the new century.According to the paradigm of communication persuasion，image management and relationship dialogue，this essay would summarize the significance of cultural communication between China and foreign countries in creating the public opinion environment，shaping the national image and promoting the mutual understanding among people.Currently，China and foreign cultural exchange mechanism has been the hub of China's international public relations construction.However，it requires improvements.This essay would use the theoretical achievements of the research of international public relations for reference，apply the dialogue paradigm as the guide，and emphasize the three principles，in terms of employing the human as scale，the dialogue as the noumenon，and the relationship as the goal.Meanwhile，it would provide five suggestions on the construction of cultural exchange mechanism between China and foreign countries.