Since microgrid are facing sudden load change ,the islanded microgrid operates at a high droop gaincoefficient to meet the rapid power distribution. However there are contradictions between high droop gain and the regulation of frequency and voltage stability. This paper put forward an improved voltage amplitude and phase angle droop controller which introduces the reactive active differential gain and integral gain coefficient. The strategy avoids the voltage and frequency of mutations caused by load disturbance that reduces the impact on microgrid. In order to achieve the secondary voltage and frequency regulation， PI controllers are added to improve the stability of the microgrid operation。Simulation and experiments improve that the proposed control strategy the proposed control strategy is effective