The transformation methods such as Brovey, HIS, PCA and Pan Sharpening were employed to perform fusion of QuickBird images, and the effects of these fusion methods were evaluated qualitatively and quantitatively. The results show that the Pan Sharpening fusion method can not only increase the spatial information of surface features but also better reserve the original multispectral information. Hence the Pan Sharpening fusion method is a means suitable for the fusion of QuickBird data.