The invention discloses a distributed predictive control strategy-based micro power grid voltage recovery method. The method comprises the steps of 10) by means of a distributed finite time observer, acquiring a global reference voltage command of an entire micro power grid and adopting the global reference voltage command as a voltage recovery reference value of a local controller; 20) adopting a droop control strategy by each local controller, collecting the local voltage value of each power supply, and adding a secondary voltage compensation term in a droop characteristic formula as the local voltage value of a distributed power supply; 30) establishing a predicted trend model; 40) acquiring a predictive control item at the current time as a secondary voltage compensation command and applying the predictive control item to each local controller; 50) under the control of the secondary voltage compensation command, judging whether the local voltage of each distributed power supply of the micro power grid reaches a rated voltage reference value or not. Based on the control method, the secondary voltage compensation command is acquired through the predictive control process. Therefore, the voltage of each distributed power generation unit in the micro power grid can be recovered, so that the overall power quality of the micro power grid is improved.