In the present study, catalytic photogeneration of hydrogen peroxide has been carried out in the presence of Ag-TiO₂ catalysts by using a batch reactor with a UV (36 watts) lamp. A series of Ag-TiO₂ catalysts (0.25-5%) was synthesized by the wet impregnation method and with a doping content of up to 5.0 wt% Ag at different calcination temperatures (200, 300, 400 and 500°C). The physic-chemical characteristics of the synthesized catalysts were characterized by powder X-ray diffraction (XRD), and Fourier transforms infrared spectroscopy (FT-IR). The photocatalytic activity of Ag-TiO₂ was evaluated in the H₂O₂ photogeneration in an aqueous solution in presence of formic acid under UV light illumination. The concentration of photogenerated H₂O₂ was estimated iodometrically. The results revealed that the yield of H₂O₂ photogeneration at optimum reaction conditions (176 ppm) was achieved.