To provide an ozone water generator with a simple structure at a low cost.

In an ozone generator which comprises a metallic cylinder whose top and bottom are opened, a Peltier element which is stuck to the exterior wall of the metallic cylinder, a metallic water tank which has an exterior wall stuck with the opposite side of the Peltier element, an air pump which is connected to a suction pipe connected to the top of the metallic cylinder, a desiccant container containing a desiccant, an ozone generator which receives dry air discharged from the desiccant container, an ejector which sucks gaseous ozone generated from the ozone generator and allows water flowing in from a faucet to pass therethrough, and an ozone killer which decomposes exhaust ozone gas from the metallic water tank storing the ozone water discharged from the ejector, a cooling side of the Peltier element is brought into close contact with the exterior wall of the metallic cylinder, and the heat generating side of the Peltier element is brought into close contact with the exterior wall of the metallic water tank.