Abstract: This invention provides a disperse system having fine powder-typed inorganic metal oxide dispersed in water and preparing method for the same and more particularly, it provides a method for preparing a disperse system having fine powder-typed inorganic metal oxide dispersed in water characterized in that a) a hydrophobically treated fine powder-typed inorganic metal oxide; b) a sulfosuccinate or sulfosuccinamate or an alkoxylated alcohol dispersant; and c) water are mixed and dispersed by a high-speed bead mill and a disperse system having fine powder-typed inorganic metal oxide dispersed in water prepared by the same. The disperse system having fine powder-typed inorganic metal oxide dispersed in water of the present invention has excellent characteristics in that it has high transparency in the visible ray spectrum, it has excellent UV protection ability when applied to cosmetics, it provides better feelings than oil dispersions, and it has better water-proof property than existing water dispersions.