In order to enhance the small-disturbance voltage stability of wind/photovoltaic/diesel microgrid including doubly fed induction generator (DFIG), DFIG reactive power control uses V-Qdroop control and the integral logic loop. The reactive power limit corresponding to the DFIG active power in the case of variable wind speed was calculated, so that the integral logic loop and the V-Qdroop control were limited. The typical eigenvalues reflecting the voltage response characteristic of the microgrid were found by the small-signal analysis method. The influence on the typical eigenvalues distribution when adopting different values of the DFIG reactive power droop coefficient was analyzed. In order to solve the problems caused by large and small values of reactive droop coefficient, after parameter improvement, the voltage regulation effect of DFIG was promoted and the microgrid has better small-disturbance voltage stability. The microgrid model using the software DIgSILENT/PowerFactory was estabished, and the effectiveness of the proposed strategy and method was verified by the dynamic time domain simulation.