Disclosed herein is a portable mist device which can spray sterilized hydrogen water in a mist form through an ultrasonic vibrator, thereby aiding beauty care. The portable mist device includes an upper container having a raw water inlet, a lower container having a sterilized water outlet formed at the side, and a pole plate unit for generating sterilized water through underwater discharge of the raw water by a pair of electrode plates. The electrode plates of the pole plate unit are mounted vertically and are located parallel with the sterilized water outlet. Therefore, the portable mist device can enhance mist discharge efficiency, and be easily connected with a battery arranged at a lower portion without the need to bend electrode connection terminals extending from one end of each electrode plate. So, the portable mist device can reduce costs required for bending the electrode connection terminals and facilitate production of standardized products.
