The utility model relates to an inflatable bottomless play-with-water boat which comprises a fusiform boat body formed by a circular ring-shaped inflatable bag body. One end of the boat body is provided with an inflating and deflating port on the inflatable bag body; the upper surface of the boat body is provided with a plurality of sitting plates. The inflatable bag body is inflated by the inflating and deflating port to form the fusiform boat body; by utilizing the buoyancy of the boat body, people can sit on the sitting plates to play with water in water; when people sit on the sitting plates, feet and legs can be soaked in water, which is very interesting; when inflatable bottomless play-with-water boat needs to be stored, the air in the bag body is discharged by the inflating and deflating port and the play-with-water boat can be rolled along each sitting plate, is very convenient to operate, occupies a small space after being rolled and is convenient to carry and store. Therefore, the inflatable bottomless play-with-water boat has the characteristics of simple structure, reasonable design and the like.