Rehabilitation for acromioclavicular impingement syndrome includes passive activities, assisted active activities, and full active activities. Acromioclavicular impingement syndrome is a series of syndromes caused by repeated wear and tear and impingement of the rotator cuff. It leads to symptoms such as shoulder pain, limited mobility, and decreased shoulder strength. It can be improved by medication (such as ibuprofen, diclofenac, etc.) and physical therapy (such as ultrashort wave, intermediate frequency electrotherapy, etc.) in the early stage, in addition to rehabilitation training. 1. Passive activities: due to local inflammation and pain, patients cannot lift the shoulder for a long time, and shoulder joint activities are limited, at this time, passive shoulder activities can be carried out with the assistance of therapists, gradually increasing the range of activities and avoiding impingement. 2. Assisted active activities: with the help of the healthy hand or elastic band and other tools, assist the shoulder joint to carry out active activities and increase the contraction of shoulder muscles. 3. Active activities: Strength training of rotator cuff muscles, mainly abduction, external rotation and internal rotation, and also strengthen the training of scapular stability. It should be noted that, if the condition of shoulder impingement is serious and there is obvious injury or rupture of tendon, then timely surgical intervention is needed. Shoulder joint persistent pain, activity limitation, should consult a doctor in time, after clear cause for treatment, drugs and rehabilitation training need to be completed under the guidance of the doctor, do not exercise on your own, in order to avoid delaying the treatment and aggravate the condition.