There is provided a hydrophobic organic solvent-dispersed sol of anhydrous zinc antimonate colloidal particles and a method for producing the same. A hydrophobic organic solvent-dispersed sol of anhydrous zinc antimonate colloidal particles, wherein surface-modified anhydrous zinc antimonate colloidal particles are dispersed in a hydrophobic organic solvent having a water solubility of 0.002 to 12% by mass, the surface-modified anhydrous zinc antimonate colloidal particles being formed by coating outer surfaces of anhydrous zinc antimonate colloidal particles (A) serving as cores with at least one substance (B) of colloidal particles of a composite oxide containing silica and stannic oxide or silica and antimony pentoxide at a silica/stannic oxide or silica/antimony pentoxide mass ratio of 0.1 to 10, an oligomer of the colloidal particles, and a mixture of the colloidal particles and the oligomer to form modified anhydrous zinc antimonate colloidal particles (C), and by bonding an organosilicon compound and an amine compound to surfaces of the colloidal particles (C). A method for producing the hydrophobic organic solvent-dispersed sol.