Slide board on water

The utility model discloses a slide board on water, which is characterized by comprising a floating body, a pulley and a paddle connecting rod. The floating body is equipped with a slideway. The pulley slides in the slideway. The central section of the paddle connecting rod is fixed to the pulley. A pedal or a hand push rod is fixed to one end of the paddle connecting rod and a paddle is fixed to the other end of the paddle connecting rod. The movement of the pedal or the hand push rod can drive the paddle to slide back and forth and the angle of the paddle changes accordingly. A backward thrust is generated due to a certain angle of the paddle during the backward sliding of the paddle. The resistance of water to the paddle is minimum due to another certain angle of the paddle during the forward withdrawal of the paddle.