There is provided a water leakage preventing humidification apparatus including: a housing; a water tank installed in the housing and storing water for humidification; a water bottle having a water guide unit having an outlet formed therein to allow water to flow out therefrom, and installed in the water tank to provide water for humidification to the water tank; an installation part disposed in the water tank and having a confinement water formed to surround at least a portion of the circumference of the water guide unit of the water bottle and a water tank input hole formed on one end of the bottom surface along which water flowing out through the outlet flows and communicating with the water tank; and a humidification unit provided to perform humidification with water stored in the water tank.