To provide an ultrasonic vibration tape grinding device which can enhance processing efficiency, processing accuracy and the like, can lessen the quantity of a grinding tape consumed, can be adjusted with ease, is simple in constitution, and is low in manufacturing cost.

This device is so constituted that the vibromotive force of vibration in the axial direction is given to a vibration shaft 9 from an ultrasonic vibrator 10, a supporting member 19 is provided for a place where the amplitude of the vibration shaft is zero, and concurrently, a grinding tape guide cylinder 21 is fixed to the shaft end of the vibration shaft where the amplitude of vibration is maximum. Or paired ultrasonic vibration devices each of which is composed of the ultrasonic vibrator 10, the vibration shaft 9, and of the supporting member 19, are disposed symmetrically and oppositely, high frequency voltage signals mutually reverse in phase are applied to the two ultrasonic vibrators of the aforesaid paired vibration devices in such a way that the tip end parts of the two opposite vibrators are ultrasonically vibrated in the same direction, and both the end parts of the grinding tape guide cylinder are combined with the aforesaid tip end parts. Or the device is so constituted that the vibromotive force of vibration in the axial direction is given to the vibration shaft from the ultrasonic vibrator, the supporting member is provided at a place where the amplitude of the vibration shaft is zero, and concurrently, the grinding tape guide cylinder is fixed to the outer shape part of one place where the amplitude of the vibration shaft is maximum, or to each outer shape part of more than two places where the amplitude is maximum, and furthermore, vibration in identical phase is made.