PROBLEM TO BE SOLVED: To give an excellent feeling of use while attaining miniaturization.SOLUTION: The ultrasonic therapeutic apparatus includes: a vibrator 20 irradiating an affected part in a wounded part of the body with ultrasonic waves a holding part 40 holding the vibrator 20 a pair of band parts 50A, 50B provided at the holding part 40 and extended in mutually separating directions from the holding part 40 and restraining parts 60 provided at the pair of band parts 50A, 50B and capable of restraining the relative displacement of the pair of band parts 50A, 50B in a state of winding the pair of band parts 50A, 50B annularly around the wounded part. The pair of band parts 50A, 50B is made of elastic bodies.