The utility model discloses a voltage regulating device based on an urban and rural power distribution network. The system comprises a power distribution network operation data integration mechanism and an energy-saving control mechanism. Operation data is collected through the communication data integration layer. Data is transmitted to the hardware acquisition control layer through a wire; the hardware acquisition control layer is used for integrating, adjusting and controlling the data; the self-commutation bridge circuit and the reactor are adjusted; the voltage amplitude and phase of direct current inversion to alternating current are controlled; therefore, the whole device is equivalent to a phase modulation power supply; reactive on-site balance is realized; real-time high power factor operation of the device is maintained; the software application layer carries out offline and online intelligent monitoring management on the power distribution network, so that the power distribution network is always in a safe, reliable, high-quality, economic and efficient optimal operation state, the power supply reliability and the power supply quality are improved, the operation and maintenance cost is reduced, and the management level and the working efficiency of the whole power distribution device are improved.