In the low voltage microgrid system with multiple inverters running in parallel, due to the difference of output line impedance of each inverter, it is difficult for each distributed power generation unit in the system to allocate the active power of the common load according to the traditional reverse droop control strategy, which affects the stability of the system. In order to solve this problem, this paper theoretically analyzes the output power allocation performance of low voltage micro-low network system, and obtains the main factors that affect the power allocation performance. Introducing adaptive virtual resistance into voltage and current double closed loop control not only suppresses the influence of the coupling between active power and reactive power on the stability of the system, but also improves the output power quality of the system. The resistance value of the adaptive virtual resistance can track the change of the difference between the output active power and reference output active power of each distributed power generation unit in real time and adjust adaptively, which compensate the bus voltage drop caused by the line impedance difference in time and effectively. The proposed strategy can make each distributed power supply distribute the active power in the common load reasonably. Finally, the effectiveness and correctness of the strategy are verified on the simulation platform. This work is supported by Key Scientific Research Project of Colleges and Universities in Henan Province (No. 17A510002) and PhD Foundation of Henan Polytechnic University (No. B2016-18).