Hydraulic brick has good abrasion resistance, corrosion resistance, and can still maintain the original strength of the product and the surface flatness in the water scouring and acid or alkali erosion environment. It can withstand different water pressure and impact water conservancy projects, and then effectively protect the stability of the river bank and slopes. At the same time, the gap between the bricks can provide convenient conditions for aquatic animals and plants to survive and reproduce.