The invention discloses a dual-zero vector model forecasting control method applicable for a three-phase grid-connected inverter. The method comprises the following steps of (1) forecasting a system state by a forecast model; (2) sieving an optimal switching vector according to a value function; (3) using a control signal corresponding to the optimal switching vector if the optimal switching vector is a non-zero vector, and selecting a certain zero vector and using a corresponding control signal according to an inequality criterion if the optimal switching vector is a zero vector; and (4) forwarding to the step (1) after entering a next sampling period. According to the method, the two zero vectors are selected and adopted by building a new criterion; and compared with the traditional model forecasting control, the method has the advantages that the switching loss of an upper bridge arm and a lower bridge arm can be effectively balanced, and the switching frequency is reduced.