The role design itself is closely related to practice. Therefore, if the creators with practical experience can join the research team, it will be a valuable asset for summing up practical experience and popularizing practical theory. This can be compared with film art. After practice, many film artists have made a summary and theoretical research. After all, practical theoretical research based on practice is more valuable. If you choose practice and research, you can talk about it from several main aspects. For example, the excavation of animation characters, the initial conceptual design sketch, if you choose a satisfactory direction, you will have the relevant reference of mature characters, summarize various suggestions, and then finalize the design; Basic posture and expression settings; Textual research and design of clothing, unified research on clothing styles; Design and perfection of props, accessories and role details; Colorimetric theory in color distribution; The collocation of a single character with the whole character group, scene and conceptual atmosphere; Grasp the role style and artistic style of the whole film and so on. These can all be discussed. The thesis I am doing is about the design of animated characters. Because it is a three-dimensional commercial character design research, I also added the problems and solutions of transforming two-dimensional into three-dimensional, as well as the material design and designation of each part, as well as the hair design of the character and so on. Because I am playing the role of Chinese style, I also introduced the question of "how to modernize Chinese style". If you are not professional or have little practical experience, you can choose aesthetics, history of animation or communication to analyze the role. But the theme may not be the role design, but other aspects of the role.