Single-walled carbon nanotubes (SWNTs) were well dispersed in both water and organic solvent by the use of fullero-dendron as a dispersant. A C-60 moiety at the focal point of dendron plays a crucial role in the dispersing process, because dendron having an anthracene unit at the focal point can not disperse SWNTs in THE The dispersions of SWNTs were characterized by UV-vis-NIR spectroscopy, Raman spectroscopy, SEM, HRTEM, and AFM.