The invention discloses a photoelectric synergistic powdered activated carbon regeneration system. The photoelectric synergistic powdered activated carbon regeneration system comprises a regulating basin, a lifting pump, a photoelectric synergistic regeneration reactor and a settling basin, wherein the regulating basin, the lifting pump, the photoelectric synergistic regeneration reactor and the settling basin are connected in sequence; the photoelectric synergistic regeneration reactor is internally provided with ultraviolet lamps, TiO2-loaded granular activated carbon, a BDD (Boron-Doped Diamond) anode, a stainless steel cathode, a separating net and an annular aeration pipe; the aeration pipe is connected with an aeration pump; the BDD anode and the stainless steel cathode are connected with a direct-current power supply; a stirrer is arranged in the regulating basin; the settling basin is provided with a water draining pipe and a carbon discharging pipe. According to the photoelectric synergistic powdered activated carbon regeneration system disclosed by the invention, during a powdered activated carbon regeneration process, ultraviolet irradiation is carried out on the TiO2-loaded granular activated carbon so as to carry out a light catalyzing reaction while aeration is carried out, a three-dimensional electrode is formed by the BDD anode and powdered activated carbon so as to carry out electrochemical oxidation, and the separating net is used for separating the granular activated carbon and the powdered activated carbon, so that saturated powdered activated carbon can be efficiently regenerated, and the photoelectric synergistic powdered activated carbon regeneration system is particularly suitable for saturated powdered activated carbon generated in the field of environment protection.