Provided is a liquid dispensing device. The liquid dispensing device includes an internal member coupled to a sink and a nozzle. A sterilized liquid module is provided in the internal member and includes a casing having an inner space to receive the liquid, and at least one electrode positioned parallel to a longitudinal direction of the casing, installed in the inner space of the casing, and configured to generate the sterilized liquid through electrolysis of liquid in the inner space of the casing.