Humidity control method and apparatus are disclosed. The humidity control apparatus may include a water holding tank for holding water therein, a nozzle positioned adjacent to the water holding tank for escape of the water therethrough, a first electrode connected to the nozzle, and a second electrode positioned opposite to the first electrode. The humidity control apparatus may include a first electrical power control unit for applying a voltage to the first electrode and the second electrode, and a first insulator formed on the second electrode.