Abstract: This essay discusses the functions of color which is great infectious and humane solicitudinous for readers.Based on the humane solicitude of the library, this essay analyses how to use library building＇s inner color to create a humane surrounding which is more suitable for readers and missionaries＇s psychology and their health.Thus it can promote readers to learn more knowledge and missionaries to work more efficiently.

Key words: Library Building, Application of Color, Humane Solicitude