A liquid dispenser (1), comprising:a container (200) configured to store liquid and having an upper opening；a base (100) to support the container (200) and having a sidewall；a pump (192) having an inlet (192c) to suction liquid stored in the container (200) and an outlet (192a) to discharge the liquid；a lid (300, 400) seated on the container (200) to close the upper opening and having a hole (421) through which liquid discharged from the outlet (192a) of the pump (192) flows；a controller (C) provided in the base (100)； and,at least one radar sensor (125) provided in the base (100), wherein the radar sensor (125) faces the sidewall of the base (100) to emit a signal through the sidewall of the base (100) and to sense a distance of a moving object from the liquid dispenser, and an operation of the pump (192) is controlled by the controller (C) based on a sensed distance of the moving object by the radar sensor (125).
