Abstract:With the development of environmental promotion in various cities, the issue of building color in the environment has become a key issue in urban“Hualian” governance. With the help of munsell color system, this paper makes a quantitative analysis of the color of yamen buildings in three directions: Hue, lightness and Chroma. This paper compares the overall Color Image of Nanluoguxiang block with the upper planning and guidelines, and analyzes the causes of color disorder in the streets and blocks. Based on the history of the environment in which the building is located and the relationship between the building and the color of the block, this paper probes into how to use the holistic vision to co-ordinate the humanistic connotation in the color control, and how to use the scientific means to carry on the fine protection to the color of the traditional building facade form.