The invention discloses an intelligent electrical load unbalance compensation device, which belongs to the technical field of low voltage power distribution networks. The intelligent electrical load unbalance compensation device comprises a central control device, and a current and voltage sampling device, a zero sequence compensation device and a negative sequence compensation device which are in control connection with the central control device, wherein the current and voltage sampling device is used for collecting current and voltage signals of a load circuit; the zero sequence compensation device consists of a zigzag transformer TR and an impedance dynamic regulation device; and the negative sequence compensation device consists of combination switches FK1 to FK3, and grouped-switched compensation capacitors of each phase. The device can filter zero sequence current to be within 1A in a rated unbalanced load, increase the unbalance of three phases of current to be within 10 percent, ensure high electric energy utilization rate, safe and reliable running and remarkable energy saving effects, reduce loss and cost and improve the economic efficiency. The whole device is connected into a power grid in parallel, and is convenient to arrange, simple to use and applied to the low voltage power distribution networks of industrial mining, enterprises, traffic transportation department, residential areas and the like.