To provide a wake-board slider which is provided with excellent mobility without restriction in an arrangement position, and can be used even by a beginner, etc.

The wake-board slider 11 allows a wake-board to slide in a floating state on water, and includes: slider bodies 12, 32 having a substantially triangular cross section. Sliding members 14, 34 where the wake-board is slid are disposed on each top of the slider bodies 12, 32. Roof shape slopes 16a, 36a inclining by prescribed angle are formed to the left and right of the sliding members 14, 34 in the slider bodies 12, 32. Floating members 13, 33 are also arranged, by which the slider bodies 12, 32 are floated on water so as to appear by prescribed height from the water surface.