PROBLEM TO BE SOLVED: To provide a sterilization-water generating device in which the state of the connecting member with respect to the storage container containing a sterilization-water source liquid, is more reliably detected.SOLUTION: The sterilization water generating device comprises: a body part a door that is constructed in openable/closable manner with respect to the body part and by which an opening is formed when opened from the body part an insertion part into which a stock liquid cartridge 20 containing a sterilization-water source liquid can be inserted from the opening formed by opening the door with a closing member 210 kept upward a connecting member 440 that linearly moves from the upward of the closing member 210 of the stock liquid cartridge 20, in communication with the door closing action, and is directed toward the closing member 210, and is connected to the closing member 210 and a connection sensor 360 that distinguishes a state in which the connecting member 440 is present in the upward of the closing member 210 and is spaced apart from the closing member 210, and a state in which the connecting member 440 is connected to the closing member 210.
