To provide a hair iron having a pair of relatively rotatable hair pressing plates, both of which are adapted to be rotated, for forming various hair styles such as straight, wavy, and curling hairs, without replacing with another component.

The hair iron includes a pair of the hair pressing plates connected so as to be mutually opened/closed and a heating means fitted on the hair pressing plates. The hair iron includes a hair pressing plates opening/closing portion for changing the angle between the hair pressing plates by vertically moving the hair pressing plates, a rotator for rotatably supporting the hair pressing plates, a fixing base body for supporting the rotator so as to be rotated around the rotation axis, a driving motor mounted to the fixing base body to rotate the rotator, and a driving button for operating the driving motor.