Abstract: An ultrasonic therapy apparatus having an oscillator connected to an electric power supplying unit through a cord and an elongated apparatus main body through which the cord passes in the longitudinal direction and holding the oscillator at a front end portion of the apparatus main body, in which the apparatus main body includes a base member having a holding unit that holds the oscillator and an accommodating groove that accommodates the cord, and a cover member that covers the accommodating groove, the base member and the cover member are separably locked by a front end locking portion provided in front of the front end portion and a base end locking portion provided at a base end portion of the apparatus main body.