A water output device is adapted to be connected to an inlet tube and includes an outlet tube and an outlet shelf having an upper outlet surface. The outlet tube passes through the outlet shelf and extends upward from the upper outlet surface and communicates with the inlet tube. A side wall of the outlet tube has a first outlet opening. The upper outlet surface has a guiding recess having an open side formed on a side edge of the upper outlet surface, so that a water flowing from the first outlet opening is guided by the guiding recess to flow out through the open side. The outlet shelf could be placed bath supplies and provide users with a special visual experience, and water could be outputted from the first outlet opening beyond the outlet shelf and guided by the guiding recess to flow out through the open side.