A wind and water power generator ship. A waterpower generation unit generates electricity using a difference between the ebb and the flow of the tides, and is provided with a buoyant body that produces buoyancy, which enables the waterpower generation unit to float on water. A center shaft is mounted on a base on an upper end of the waterpower generation unit, and is rotatably supported by a bearing. A wind power generation unit generates electricity using wind power, is provided on an upper end of the center shaft, and is rotatable depending on a direction of wind. The distance from a front end of the wind power generation unit to the center shaft is shorter than the distance from the center shaft to a rear end of the wind power generation unit.