The invention discloses an electricity grid power compensation control device, comprising a controller, an inverter, a driver module, a current sensor A, a signal conditioning circuit and a zero-cross detection circuit, wherein the controller is connected with the zero-cross detection circuit, a storage module the signal conditioning circuit and the inverter respectively; the signal conditioning circuit is also connected with a voltage sensor, an isolation module and a current sensor B respectively; the isolation module is also connected with the current sensor A; and the voltage sensor is also connected with an energy-storage capacitor. According to the electricity grid power compensation control device, there is no limitation on electric wires, loads can be randomly installed within a wireless power supply acceptable range, high-order current harmonics in system operation can be filtered out, and the total harmonic distortion of the transmission grid is reduced, thus the purpose of load power compensation is achieved. The electricity grid power compensation control device can be applied to homes, vehicles, scenes or landscape LED illumination, and is effectively improved in flexibility of illumination distribution, economical in electric energy, reduced in light pollution, improved in quality of electric energy, and wide in application prospect.