The invention belongs to the technical field of an electric power system and automation thereof and discloses a control method for actively preventing the simultaneous low-voltage tripping of sets in a wind power field, i.e. in the operating process of the electric power system, the track of the grid-connected point voltage of the wind power field changed with the time is monitored in real time through a measuring and control device installed in the wind power field and compared with a low-voltage ride-through requirement curve of the wind power field, and when the track of the grid-connectedpoint voltage falls at an acting region and lasts for a certain period of time, the simultaneous low-voltage tripping of the sets in the wind power field can be effectively prevented by adopting active reactive power control, partial fan shedding and load shedding control strategies, thereby preventing the evolvement to power shortage accidents due to grid-connected point voltage drop.