Recurrent anterior dislocation of the shoulder is rarely seen in elderly patients. We have experienced three cases of this disease with different real nature. All cases had rotater cuff tear, and two cases had Bankart lesion. Case 1 : A 74-year-old female had severe instability with massive rotater cuff tear and large bony Bankart lesion. Surgical treatment was consisting of fixation of the anterior fragment of the glenoid and arthroscopic rotater cuff repair (ARCR). Case 2 : A 52-year-old female fell and dislocated her shoulder with Bankart lesion and cuff tear four years ago. Only the cuff tear was repaired. Recurrent dislocation of the shoulder occurred without trauma in recent years. Bankart repair and ARCR were performed on this case. Case3 : A 69-year-old female fell and dislocated her shoulder with massive rotater cuff tear without Bankart lesion. Recurrent anterior dislocation of the shoulder occurred several times a week. Surgical treatment was performed using ARCR. This disease is caused by the combination of rotater cuff tear and Bankart lesion in the elderly. It is necessary to maintain satisfactory results by treating both injuries if the need arises.