Protective device for cast-in-place continuous beam

The utility model discloses a protective device for a cast-in-place continuous beam, which comprises a positioning frame and a protective device, the positioning frame is of a U-shaped structure with a downward opening, the bottom of the positioning frame is erected on the side of a bridge through a plurality of bolts, a positioning plate and a mounting plate are oppositely and fixedly arranged at the top of the positioning frame, and the positioning plate is arranged along the length direction of the positioning frame; the display board is fixedly arranged on the outer side wall of the positioning plate; and the construction platform is in sliding connection with the outer side wall of the mounting plate through a lifting device in the height direction of the bridge. The protective device is connected with the bridge through the bolts, so that the protective device is easy to detach after being installed; during use, the lifting device drives the construction platform to freely lift in the height direction o