Numerous operative procedures have been documented for the reconstruction of acromioclavicular (AC) joint dislocation. We present two cases with Rockwood type III AC joint dislocation treated by using arthroscopic reconstruction. There are several advantages for this technique, including less invasiveness and morbidity of the surrounding soft tissues, no impingement syndrome, and the lack of need for implant removal. The short-term results show good clinical and radiographic outcomes.