3D animation has become a trend of international film in recent years. Compared with traditional film, it increases not only imagination, but also visual enjoyment. This study concerns the transformation of adult plot's visual element, such as violent manifestation, attacking motions, intimidation and sexual ambiguity. The transformations are using humorous, exaggerative, illogical and comical visual design expression. Therefore the audience can be in a relaxing and enjoyable atmosphere to watch the film and to achieve the purpose of entertainment and education.This research takes Cognitive Psychology、Image Communication and Educative Psychology concept to discuss ”Ratatouille” are successful using visual design performance of adult plots interpretation, and let the audience in visual and media transmitted obtain positively influence. In this way, this research divides two parts to discuss:First, according to the noun explains and the literatures analysis, get the points of ”Ratatouille” from Cognitive Psychology and Image Communication concept using in visual design expression. Second, Pixar animation studio, the working group do well both good communication for creating and excellent attitude of team work. In additionally, the working group is using the professional visual performance and mature symbols, and also integrated local humanities and culture into the film, let the audiences feel only pleasurable but not disgusting. Furthermore, using the produced process of Cognitive Psychology to analyze image performances, and also to analyze Adult plot of story construction and visual performance by Image Communication Concept, the infantile psychology influence of Educative psychology auxiliary in this film.Finally, through this research discuss and analysis, How to interpret visual design performance of adult plot in positive and happy situation, and design concept and creative principles of produced process.