The Mental Image is designed and proposed for making a comfort and amenity in built environments using digital color analysis in the regional urban artificial environment. For a long time, it is crucial to relate visual environment with thermal environments. Especially, color makes an important role to making thermal comfort. In order to making this information, this paper describes how we can analyze the color information of the regional urban artificial environment using the color syntax program and transfer the data to form maker and create the mental image. Because of the rapid urbanization and the acceptance of mixed function, modern urban landscape is disordered and is not controlled. The Mental Image prepares our environmental color system corresponding to our mental image with perceiving regional urban environment color. This research aims to systematize the process making the Mental Image in the regional urban landscape’s color and suggest a theoretical basis to extract, embody and use the information of the regional main color from urban landscape color. Through these concepts, this research will suggest how to systematize, develop the Mental Image with emotional environmental color system. Finally, it is expected to offer a theoretical basis to embody the Mental Image and build up the emotional environments.