To provide an electric flat iron with comb which can straighten the hair of a person who wishes his/her curly hair relaxed or straightened easily by one hand.

Two combs 2 are installed on both sides of one of two hyperthermic heat plates 1. There are 1.5 mm to 2 mm gaps on both sides of one hyperthermic heat plate 1 so that the scalp does not come into direct contact with the hyperthermic heat plate 1. Combs 2 are installed on this section at a right angle against the hyperthermic heat plate 1 as an extension of the main body. Combs 2 are provided with teeth of 1.5 mm thickness at 1 mm intervals. The length of one tooth is between 6 mm and 7 mm and, when clipped it, is to an extent that it does not abut on the main body on one side.