Dislocation of the acromioclavicular joint is a relatively common sports injury. This injury can be treated conservatively or, in more severe cases, surgically. For milder dislocations, the shoulder joint should be stopped immediately after the injury and ice should be applied. Ice can reduce pain and swelling and help relieve the pain and discomfort after dislocation. Then promptly apply triangular towel and shoulder and elbow band to fix the injured affected limb, the fixation time is about 3-6 weeks. After the early immobilization time is completed and full recovery is expected, functional movement exercises of the shoulder joint are required. This is an important measure to facilitate the restoration of normal shoulder joint motion. Specific measures of shoulder joint movement can be performed by moving the upper extremity in various directions depending on pain tolerance, which is the easiest method of exercise. Depending on the extent of the shoulder lock joint injury, the recovery time is expected to take anywhere from 2-6 weeks. For patients who do not respond well to conservative treatment or for more severe dislocations, surgical treatment is necessary. For example, patients with a milder degree of dislocation who experience pain with shoulder motion or pressure on the acromioclavicular joint area after 2 to 3 months will require surgical treatment. The principle of surgery is to restore the dislocated shoulder lock joint tissue to its normal anatomical structure and then to reinforce the periarticular tissues. Minimally invasive surgery is currently used. Dislocation of the acromioclavicular joint is a relatively common injury. After the injury has occurred, it is important to complete an examination to rule out the presence of a clavicle or shoulder fracture. The presence of a fracture usually requires surgical treatment in the early stages.