An electrolytic liquid generating device comprising: an electrolytic part having a laminated body in which a conductive film is laminated to be interposed between a positive electrode and a negative electrode, the electrolytic part being configured to electrolyze liquid, and a passage having an inflow port in which liquid to be provided to the electrolytic part flows and an outflow port from which electrolytic liquid generated in the electrolytic part flows out, the passage being formed such that an extending direction of the passage crosses a laminated direction of the laminated body, wherein a direction in which one of the electrodes (44, 45) and the conductive film are laminated is defined as the laminated direction, wherein a groove part (42, 42A, 42B, 42C) having an opening opened to the passage is formed in the laminated body, at least a part of a boundary surface (27, 47) between the conductive film and the electrodes (44, 45) being exposed to the groove part, an upper surface of the positive electrode serves as a bottom surface of groove part, and the bottom surface of the groove part is opposite to the opening side of the groove part, characterized in that the groove part includes a negative electrode side hole formed in the negative electrode and penetrating in the laminated direction, at least a part of a side surface of the groove part, at a downstream side in the extending direction of the passage, forms a crossing surface wherein the crossing surface is formed in the negative electrode side hole and is inclined upward from the bottom surface side of the groove part toward the opening side of the groove part, when seen in the laminated direction, the crossing surface is formed such that an edge at the bottom surface side of the groove part in the crossing surface is disposed in a region, which is an inside region of a boundary line and includes the boundary line, defined by an edge at the opening side of the groove part, wherein the boundary line is a closed curve line depicted by the edge at the opening side of the groove part. an electrolytic part having a laminated body in which a conductive film is laminated to be interposed between a positive electrode and a negative electrode, the electrolytic part being configured to electrolyze liquid, and a passage having an inflow port in which liquid to be provided to the electrolytic part flows and an outflow port from which electrolytic liquid generated in the electrolytic part flows out, the passage being formed such that an extending direction of the passage crosses a laminated direction of the laminated body, wherein a direction in which one of the electrodes (44, 45) and the conductive film are laminated is defined as the laminated direction, wherein a groove part (42, 42A, 42B, 42C) having an opening opened to the passage is formed in the laminated body, at least a part of a boundary surface (27, 47) between the conductive film and the electrodes (44, 45) being exposed to the groove part, an upper surface of the positive electrode serves as a bottom surface of groove part, and the bottom surface of the groove part is opposite to the opening side of the groove part, characterized in that the groove part includes a negative electrode side hole formed in the negative electrode and penetrating in the laminated direction, at least a part of a side surface of the groove part, at a downstream side in the extending direction of the passage, forms a crossing surface wherein the crossing surface is formed in the negative electrode side hole and is inclined upward from the bottom surface side of the groove part toward the opening side of the groove part, when seen in the laminated direction, the crossing surface is formed such that an edge at the bottom surface side of the groove part in the crossing surface is disposed in a region, which is an inside region of a boundary line and includes the boundary line, defined by an edge at the opening side of the groove part, wherein the boundary line is a closed curve line depicted by the edge at the opening side of the groove part.