To suppress disturbance in a shape when discharging film-like water from a discharge port.SOLUTION: A water discharge device includes a water discharge member where a slit-like discharge port 11 and a discharge passage 33 for supplying water to the discharge port 11 are formed. In the discharge passage 33, a storage chamber 45 for storing water flowing in from the upstream side as storage water and a throttle flow passage 47 for delivering the storage water in the storage chamber 45 to the discharge port 11 are formed. Side surfaces 33a on both sides in the width direction of the discharge passage 33 are formed so that the passage width becomes wider toward the discharge port 11 side from the storage chamber 45 side. An angle θ1 at an acute angle formed by a virtual line L1 in parallel with the width direction of the discharge port 11 and a tangential line L2 passing an opening edge 51 of the discharge port 11 on the side surface 33a is formed to be equal to or greater than 45° and less than 90°.SELECTED DRAWING: Figure 7【課題】吐出口から膜状水を吐き出すうえで、その形状の乱れを抑える。【解決手段】スリット状の吐出口１１と、吐出口１１に水を供給するための吐出通路３３とが形成される吐水部材を備え、吐出通路３３には、上流側から流入する水を貯溜水として溜めるための貯溜室４５と、貯溜室４５内の貯溜水を吐出口１１に送り出すための絞り流路４７とが形成され、吐出通路３３の幅方向両側の側面３３ａは、貯溜室４５側から吐出口１１側に近づくにつれて通路幅が広がるように形成されるとともに、吐出口１１の幅方向と平行な仮想線Ｌ１と、その側面３３ａにおいて吐出口１１の開口縁５１を通る接線Ｌ２がなす鋭角での角度θ１が４５°以上９０°未満となるように形成されることを特徴とする。【選択図】図７
