Small strontium titanate (SrTiO3) particles with an average particle size of about 100 nm have been successfully synthesized by a simple and fast electrochemical route, in which Ti metal plates are used as electrodes and an aqueous solution of KOH and Sr(OH)(2) as an electrolyte. Anodic sparks played a key role, and KOH concentration was one of the most significant factors that affected the appearance of anodic sparks in this method. XRD patterns indicated that the powders obtained in our study were a pure perovskite phase SrTiO3 with a cubic structure, whose size and morphology were subsequently studied by transmission electron microscopy. UV-VIS result showed that the products had better UV absorption and visible light response than TiO2-P25.