The invention relates to an improved VSG control strategy for dealing with grid harmonics, and belongs to the technical field of power quality of VSG to effectively suppress the harmonic content of the VSG grid-connected point current when the grid contains harmonics. The improved VSG control strategy comprises steps of firstly, establishing a VSG equivalent model, and providing an inductive current reference value algorithm based on improved biquadratic generalized integral based on the analysis of the influence of grid harmonics on the grid current; replacing the differential operation in the full feedforward control of the grid voltage by an inertia integral link; and analyzing the corresponding current regulator mechanism so as to select a corresponding current regulator to achieve current tracking and harmonic suppression.