To improve handleability by preventing the leakage of water at the time of detaching a water tank and smoothly generating steam without receiving influence by the position of an exchanging part with respect to a hair styling device with a steam generator for styling hair.

The device is provided with the steam generator 17 generating steam by the heat of a heating part 15 and the water tank 14 storing water to supply for this generator 17 and formed in the state of being freely attachable and detachable. This water tank 14 is provided with a water guiding part 18 infiltrating and transmitting water to the generator 17 and an exchange part for taking air to the inside of the tank 14, and the parts 18 and 19 are constituted of a cylindrical filter obtained by assembling capillary fibers.