Water conservancy construction waterproof structure

The utility model belongs to the technical field of water conservancy construction equipment, and discloses a water conservancy construction waterproof structure which comprises a canal construction water blocking mechanism, the canal construction water blocking mechanism comprises a water blocking plate, drawing plates and an automatic switch, the drawing plates are symmetrically and slidably installed at the inner end of the water blocking plate, and the upper portion of the automatic switch is fixedly connected to the upper portion of the water blocking plate. The water blocking plate comprises a shell plate and a bolt, the drawing plate is embedded into the inner wall of the shell plate in a sliding mode, the bolt is installed at the inner end of the upper portion of the shell plate in a threaded mode, the bolt penetrates through the shell plate to be extruded at the outer end of the drawing plate, and the upper portion of the automatic switch is fixedly installed at the upper portion of the shell plate;