To provide a hair setting apparatus capable of preventing hair from spreading transversely when clamping the hair by a contact part and a receiving part and performing an operation by ultrasonic vibrations.

The hair set apparatus is provided with a vibrator 1 for generating the ultrasonic vibrations and a horn 2 for amplifying the vibrations of the vibrator 1 and transmitting them to the hair H, the end face on the side opposite to the side connected to the vibrator 1 of the horn 2 is turned to the contact part 20 with the hair H, and the receiving part for clamping the hair H with the contact part, which can be freely separated from and brought closer to the contact part 20, is provided. The amplitudes of both end parts of the contact part 20 are made larger than the amplitudes of the center part.