The output three-phase current of the inverter based on the control strategy of virtual synchronous generator (VSG) is unbalanced and the current amplitude is too large. To solve this problem, a VSG balanced current control strategy based on voltage feedforward is proposed. The transfer function of the feedforward controller is derived by using the control block diagram of the VSG current inner loop, and then the grid voltage is fed forward to the current inner loop through the feedforward controller. The interference of the fault voltage to the current waveform and the current distortion rate are reduced. The average values of instantaneous active power and reactive power are fed back to VSG algorithm to get the voltage reference instruction of restraining negative sequence current, which can make the grid connected current keep three-phase balance and stable amplitude during the voltage fault period. Finally, the effectiveness of the proposed control strategy is proved by MATLAB/Simulink simulation.