This study was carried out to investigate the effect of surface modified pigments on the properties of coated paper. The selected core particle(clay, talc) and fine particle(TiO$_2$) were modified by hybridization. The optical properties of modified pigments, rheological properties of coating color, and optical properties of coated paper were investigated. It was found that particles formed sphere-like shape and became more uniform during the surface modification in the hybridization system. As a result, It was estimated that surface modification of TiO$_2$ turned out to be more effective in improving optical properties of pigment and coated paper than simply blending it.