In 1980s, with tremendous changes in people’s social, economic and cultural life, a new cultural form, popular culture, rose in China. Since then it has developed rapidly and become the mainstream culture among modern China with great influence on Chinese youth. This paper discusses the propagation of popular culture among Chinese youth through analysis on their material culture and behavior culture. Then it refines characteristics of popular culture. Discussions on propagation, characteristics of popular culture are helpful for people to understand youth culture in modern China, to find out solutions to youth problems,therefore to create a healthy environment for Chinese young people. In 1980s, with tremendous changes in people’s social, economic and cultural life, a new cultural form, popular culture, rose in China. Since then it has developed rapidly and become the mainstream culture among modern China with great influence on Chinese youth. This paper discuss the propagation of popular culture among Chinese youth through analysis on their material culture and behavior culture. Then it refines characteristics of popular culture. Discussions on propagation, characteristics of popular culture are helpful for people to understand youth culture in modern China, to find out solutions to youth problems, therefore to create a healthy environment for Chinese young people.