To provide a hairdressing device that is capable of restoring a damaged hair by use of laser beams and infrared rays, and that makes it possible to easily learn the degree of neutralization of a hair when performing a straight permanent.

The device includes first arm 10-1 and second arm 10-2 coupled together by a hinge 12. Each of the first and second arms includes a grip portion and a head portion extending from the grip portion. The first arm includes a first heat generating body 20-1 having at least one electric heater arranged in the head portion for heating a hair. The second arm includes a second heat generating body having two electric heaters arranged side by side in the head portion for heating the hair at different temperatures and a digital display part 28 provided on an outer surface of the second arm for indicating information on a permanent to be performed.