The invention discloses a control structure and method for restraining fluttering of a bridge. The bridge comprises a main beam plate and steel beams, vibration reduction devices are arranged at two ends, the side face, and between the bottom face and a bridge pier, of the bridge correspondingly, anti-seismic cushions are mounted on supporting bases of the bridge, sensors and controllers are mounted on the supporting bases of the bridge as well, wind-induced vibration conditions of the bridge are transmitted to each controller through each sensor, the controller adjusts the vibration amplitude of each vibration reduction device, wind shields are arranged on two side edges of the bridge, the upper portion of each wind shield is connected with the outer end portion of the main beam plate, and the lower portion of each wind shield is connected with a steel plate located in the lowest position of the steel beams. The control method for restraining fluttering of the bridge is reasonable in design and simple in structure, can reduce influences of wind vibration to the bridge effectively, at the same time, can buffer damage of the bridge caused by earthquakes and lateral pressure of the gravity, is simple in structure, easy to construct, low in cost, and can be applied widely.