Reactive circulation is determined by the output voltage amplitude difference between different micro-sources in the micro-grid. On the basis of in-depth analysis of the relationship of the output voltage amplitude difference and reactive power output deviation between parallel operation micro-sources, this paper introduces the feedforward amplitude of the voltage feedback control strategy into conventional droop control, to reduce the amplitude differences of the output voltage between the sources, thus to suppress the reactive power circulation. Simulation results show that the control strategy is feasible and can improve the stability of micro grid operation effectively. Finally simulation results show that the feedforward amplitude of the voltage feedback control strategy can effectively suppress the shock of frequency and voltage during grid synchronization.