The purpose of this paper is to examine the meaning of popular culture in Korea and China, and to analyze and compare the pure and dysfunctions of popular culture in the two countries. In China since its transition into the market economy by the reform and opening, its people have become well-off and had more desire to enjoy culture. Under these circumstances pop culture played affirmative roles such as relieving economical and mental stress, educating people and forming civic society. On the other hand, because of cultural imperialism, cultural values and a way of thinking from the West have influenced upon Chinese pop culture and collapsed its traditional spiritual culture, causing the crisis of Chinese humanism. In Korea, the positive aspects of its pop culture are as follows: the Korean pop culture not only serves as a way to express oneself and relieve mental stress but also produces economical profit. However likewise the Chinese case, South Korea is confronted by the crisis of the humanities, traditional art and folk culture. Studying these diverse functions of the two nations’ pop cultures, I could understand the two cultures and seek plans to achieve mutual development gradually through the two countries’ cultural interchanges.