The traditional drop control is adopted for the power balance and voltage stability control of themicro-grid. Uneven distribution of reactive power due to equivalent impedance difference between the dif-ferent generations（DG）leads to loop current between DG and

thus increasing the loss and reducing volt-age quality of the system. In this regard

an improved droop control strategy based on reasonable distribu-tion of reactive power and system voltage stability is proposed so to achieve the effective reactive power con-trol by introducing reactive power compensation link and voltage recovery mechanism. Finally

the reason-able reactive power distribution and stability of system voltage without simultaneously the influence of reac-tive power output by the drop control is verified through the Matlab/Simulink simulation.