It aims to design a good virtual user interface for young people in order to improve the experience and efficiency of the youth use. Combined with the characteristics of immersion, intuition and interaction of virtual reality technology, it analyzes and studies the comprehensive application of adolescents' psychological and cognitive characteristics in interface design. There are three characteristics that should be provided for the virtual user interface for teenagers: interesting, instructive and emotional. The specific implementation methods and case studies are given in the aspects of how to use the spatial sense, detail and sound design to increase the interesting of interface, as well as through the navigation, layout and icon to build the booting system, and use the instructions, emotional function, anthropomorphic elements and style design to reflect emotions.