The invention discloses a state predictor-containing control method for consistency of virtual synchronous generators. The control method comprises the steps of determining a first output difference value yi according to the output power Pi and the rated power Pi<*> of the i virtual synchronous generator (VSG); determining a second output difference value Yi according to the first output difference value yi and a droop characteristic curve translation amount Yi of the i VSG, wherein the droop characteristic curve translation amount Yi is regulated by the second output difference value Yi and a consistency control parameter Qi; determining an output angular frequency i according to the second output difference value, a damping coefficient D of the i VSG, the rated angular frequency b, an actually measured angular frequency i, and a virtual rotation inertia Ji; and determining an angle i according to the actually measured angular frequency i, and influencing the output power Pi and the consistency convergence speed according to the angle i. According to the state predictor-containing control method for the consistency of the virtual synchronous generators, the droop characteristic curve translation amount Yi is regulated by the second output difference value Yi and the consistency control parameter Qi, so that the convergence speed can be accelerated and the convergence value can be achieved rapidly.