Hydraulic engineering protection device

The utility model discloses a water conservancy project protection device which comprises a protection wall, soil slopes are laid on the two sides of the protection wall, one side of each soil slope makes contact with river water, the side, close to the river water, of each soil slope is arranged to be a slope, a protection inner plate is fixed to the upper surface of each slope, and springs are connected to the upper surfaces of the protection inner plates. A protection outer plate is connected to the sides, away from the protection inner plate, of the springs, drainage grooves are formed in the upper surface of the protection outer plate, a plurality of flow guide holes are formed in the protection outer plate, the end, away from river water, of the soil slope is flat ground, and a protection net is laid on the upper surface of the flat ground. Impact of river water and rainwater on the slope surface of the river embankment is reduced by arranging the protective outer plates connected through the springs, m