In low voltage microgrid, it is difficult for traditional droop control to make Distributed Generations (DGs) to output active power reasonably according to the droop coefficient. Aiming at this problem, a distributed control strategy based on the communication network is proposed. Zigbee wireless communication network is employed and the corresponding topology structure is built to realize information exchanging between DGs. The distributed PI controllers which are based on the consensus algorithm are designed to guarantee the active power output of DGs to meet the requirement of rated ratios. Finally, the simulation results show the feasibility of the proposed method, and indicate that the changes of network-induced delays and topology structures will affect the stability of the microgrid system. This work is supported by Natural Science Foundation of Shanghai (No. 15ZR1417500).