Hydraulic reclamation construction system of bucket type sand pumping ship

The utility model relates to a hydraulic reclamation construction system of a bucket type sand pumping ship. A bucket type sand pumping ship is anchored on the sea surface which is a preset safe distance away from the outer side of a cross-sea bridge; the belt output end of the belt sand conveying ship is connected with the sand pump input end of the bucket type sand pumping ship; the sand pump output end of the bucket type sand pumping ship is connected with the input end of the overwater floating pipe; the output end of the overwater floating pipe is connected with the input end of the landshore pipe; the output ends of the land shore pipes face the hydraulic reclamation construction area, the underwater cement mixing piles are laid on the seabed surface of the inner side of the cross-sea bridge, the prestressed concrete piles perpendicularly penetrate through the underwater cement mixing piles and are inserted into the seabed to form an outer seawall, and the distance between the prestressed concrete piles