Abstract: Disclosed is a hair dryer including a cylindrical body having a front portion on which an exhaust grill is installed, a rear portion on which an intake grill is installed, an exhaust nozzle installed on a front portion of the exhaust grill, a blower fan and heating unit that are installed inside thereof, and an manipulation panel installed on an outer surface thereof, a rotational frame that is adjacent to the manipulation panel and installed around an outer circumference of the body to be capable of rotating around the body, and a rotational ring that is installed on the rotational frame to be capable of rotating about a axis defined along a diameter direction of the rotational frame. The user can stably grasp the hair dryer by inserting his/her finger into the rotational ring and thus the user can treat the hair using only one hand.