Provided is a humidification and air cleaning apparatus. The humidification and air cleaning apparatus includes an intake flow passage suctioning external air, a discharge flow passage discharging internal air, a blower unit flowing air flowing to the intake flow passage to the discharge flow passage, a discharge humidification medium disposed on the discharge flow passage to additionally humidify flowing air, a water tank humidification medium disposed between the blower unit and the discharge humidification medium to humidify flowing air, and a watering unit spraying water between the water tank humidification medium and the discharge humidification medium.