Provided is a hair dryer having negative ion generator, which includes: a housing having an air inlet, an air outlet, a fan disposed between the air inlet and the air outlet and a heater. The hair dryer also includes a first and second air duct extending to the air outlet in the housing. The first air duct has a heater and is separated from the second air duct by the separating wall to supply thermal current and cooling draft simultaneously. The negative ion generator is disposed in the housing. The case is in slightness form and has a handle case accommodating the fan and the heater. The tubular head can be separably connected to the handle case and includes a plurality of holes and a hair brush with one hole. The thermal current is discharged through a plurality of holes and the said hole is in different position from a plurality of holes. The cooling draft and the negative ion are discharged through one hole. Thereby, the air outlet can provide the cooling draft and the thermal current with negative ion simultaneously and the hairstyle making can be progressed effectively. |