According to the China Internet Information Center, most users of Music Apps were born in the 1990s and are also a major group studying in Korea. Overseas, due to copyright restrictions, Chinese students often use Korean Music Apps. During use, it was found that there were differences in UI design between Korean and Chinese Music Apps, and there were also problems with user experience. To improve this, actions and recognition in user behavior can be developed through the close correlation between affordance design and UX design. The purpose of this study is to analyze the UI design of Korean and Chinese Music Apps interface based on affordance theory and explore the cultural differences in Korean and Chinese UI design. The three visual elements of UI design were obtained through preliminary research. Then, a questionnaire for Chinese students based on Hartson's affordance design, and proposed improvements. Results indicate that apps interface design should standardized and consistent in layout, color, and icons, should conform to the user's operating habits, and have clear feedback and communication with the user. In addition, Korean Apps pursue a simple and effective user experience, while Chinese Apps focus on providing rich information and visual diversity.