The invention discloses a bidirectional AC/DC converter parallel system control method for a DC microgrid, and the method comprises the steps: secondary ripple inhibition, low-voltage deviation current-sharing control and voltage and current double-closed-loop control. Through the introduction of a second-order band-stop filter, the method achieves the effective filtering of the secondary ripple components in the current and voltage of the DC grid, and prevents the feedback introduced to a control loop from causing the grid-connected current distortion. The mean current of a DC line is fed back as a global variable in the low-voltage deviation current-sharing control, and an integration link is introduced, thereby achieving the precise distribution of power of each converter without the impact from the line parameters. The deviation of a DC bus voltage is reduced through the introduction of the mean output voltage PI (Proportional-Integral) control. A voltage outer loop in the voltage and current double-closed-loop control employs PI control, thereby guaranteeing the no-static-error tracking of a DC voltage. A current inner loop employs quasi-proportional resonant control, thereby achieving the better tracking control of a fundamental wave sine current.