A water discharge device comprising a water discharge member formed with a slit-like discharge port (11) and a discharge path (33), wherein the discharge path (33) is formed with a reservoir chamber (45) for holding, as reserve water, water flowing into the discharge path (33) from its upstream side, and is formed with a constricting flow path (47) that sends forth the reserve water in the reservoir chamber (45) to the discharge port (11), and lateral surfaces (33a) on either side of the discharge path (33) in its width direction are formed such that a path width of the discharge path (33) spreads as approaching its discharge port (11) side from its reservoir chamber (45) side, and is formed such that the angle (θ1) formed by an imaginary line (L1) paralleling the width direction of the discharge port (11) and, on the lateral surfaces (33a), a tangent line (L2) passing over the discharge port's opening rim (51) is greater than or equal to 45° and less than 90°.
