A hydrogen water generator includes a water tank for receiving and storing water, an electrode module coupled to the water tank for generating hydrogen water in the water tank, a water outlet pipe, a pump for pumping the hydrogen water stored in the water tank to one end of the water outlet pipe, a water outlet disposed at an other end of the water outlet pipe, and a sealing plate coupled to the water outlet. The hydrogen water generator includes a moving part and an actuator to move the moving part so that the sealing plate closes an opening of a water container.