When a microgrid operates in island mode, distributed generation can realize autonomous power distribution through droop control. The traditional droop based on a decoupling system model ignores the influence of line impedance inconsistencies, resulting in uneven power distribution and circulating current problems. These affect the efficiency of distributed generation, and may even cause distributed generation overload. In response to the above problems, this paper proposes an improved droop control strategy based on a consensus algorithm. This method uses adjacent communication to obtain the reactive power output information of the inverters. The local controller dynamically corrects the reactive power difference between inverters through the consensus algorithm until the deviation approaches zero. This enables the precise distribution of reactive power while reducing the amount of communication. The model is built on the Matlab/Simulink simulation platform, and the effectiveness of the proposed control strategy is verified by comparing with traditional control strategies. This work is supported by the Science and Technology Major Program of Shanxi Province (No. 20181102028), the Science and Technology Project of State Grid Shanxi Electric Power Company (No. 520530180011) and the National Natural Science Foundation of China (No. U1610121).