The invention is applicable to the technical field of ships, and provides a water-borne coal transport ship. The water-borne coal transport ship comprises a base, at least one lead screw, a transportship body, a rotating driving part, a first telescopic driving part and a hopper, wherein an installation frame is rotatably arranged on the upper surface of the base, the lead screw is rotatably arranged on the installation frame, the transport ship body is cooperatively arranged on the lead screw and used for transporting coal powder, the rotating driving part is connected with the lead screw through a transmission part and used for driving the lead screw to rotate, the first telescopic driving part is rotatably installed on the base, rotatably connected with the installation frame and usedfor driving the installation frame to rotate, and the hopper is installed on the base and used for containing the coal powder. A feeding roller for controlling feeding is rotatably connected to the bottom of the hopper, a one-way stirring roller is connected to the feeding roller, a stirring rod is connected to the transport ship body, and the stirring rod cooperates with the one-way stirring roller to control feeding. The water-borne coal transport ship has the advantages of being simple in structure, convenient to operate, small in workload, high in working efficiency, capable of saving energy, good in synchronism and convenient to implement and popularize.