Ag/TiO2 sol with narrow particle size distribution was synthesized using TiCl4 as the starting material. TiCl4 was converted to Ti(OH)4 gel. The Ag/TiO2 sol was prepared by process where H2O2 was added and then heated at 90–970C. After Condensation Reaction And Crystallization, a transparent sol with suspended Ag/TiO2 was formed.