The conventional droop control is difficult to guarantee the load power distribution accurately in the islanded mode microgrid, through in-depth analysis of the power distribution characteristics, the conclusion that the mismatch of rated power and line impedance is the root cause of inaccurate distribution is got, an improved method depend on static correct the droop gain to improve power distribution characteristics is proposed on this basis. This method does not change the equation form of the conventional droop control, and has no significant effect on the system dynamic performance and stability, the impact on the operating voltage is also lesser. The effectiveness of the improved method is verified on the Matlab/Simulink simulation platform.