The invention relates to an improved adaptive droop control method for parallel inverters in a low-voltage microgrid. The method includes the following steps that: virtual complex impedance is introduced, so that the equivalent output impedance of the parallel inverters can be inductive, and a droop control equation can be obtained; linear function terms of power and droop coefficients are introduced to replace droop coefficients in the droop control equation, so that an adaptive droop control equation can be obtained; and voltage drop caused by the extraction of the virtual complex impedance is considered, so that an improved adaptive droop control equation is obtained. Improved adaptive droop control on the parallel inverters is realized through the improved adaptive droop control method. Compared with the prior art, the improved adaptive droop control method of the invention has the advantages of quick dynamic response and high stability, and can realize a compromise between the load sharing and output voltage quality of the parallel inverters.