A series of experiments were conducted to explore the effect of various concentrations of Fe,2,（SO,4,）,3, solution on the color change of oak floor; the color stability of treated wood during the accelerated aging process of UV and high temperature and humidity was investigated. The results showed that the oak became darkened, greening and bluing with the increasing concentration of Fe,2,（SO,4,）,3,. After the concentration value was higher than 6%, the surface color did not further change. After 96 hours of the UV aging treatment, the surface color of all samples tended to be darkened, reddening and yellowing; the intensity of color change of samples under the high temperature and humidity conditions was different, and inclining to be darker, more reddish and blueish. The samples treated with 8% concentration of Fe,2,（SO,4,）,3, solution presented the best color stability. The Fe,2,（SO,4,）,3, treatment contributed to darken the surface of the oak. The samples had better color stability and different shades of colors after the UV coating. It was suggested that further studies on optimizing the Fe,2,（SO,4,）,3, treatment need to be carried out to form a chemical coloration method for wood surfaces with stable and attractive color properties.