[Objective] To investigate the clinical efficacy of the treatment of impingement syndrome caused by fracture malunion of greater tuberosity of humerus with the plasty of acromion and greater tuberosity and the reconstruction of rotator cuff with rivets with wire.[Methods]From June 2018 to October 2022,a total of 17 patients with impingement syndrome after fracture malunion of greater tuberosity of humerus were followed up,be operated by the plasty of acromion and greater tuberosity and the reconstruction of rotator cuff with rivets with wire. Among them, 6 cases had acromion impingement of malunion of greater tubercle after operation of proximal humerus fracture, and 11 cases of avulsion fracture of greater tuberosity of humerus after conservative treatment. The affected forearm was suspended in front of chest after operation, the pendulum passive functional exercise with protection for shoulder joint was started 24 hours after operation.The circling passive functional exercise with protection for shoulder joint was started about 1 week after operation with a small range at first, and the range of activity gradually increased. 6 weeks after the operation, active flexion and extension, abduction, rotation and circumflex functional exercises were started gradually until the functional activities were satisfactory.[Results]All of the 17 cases were followed up with the average follow-up time was 10 months (range, 6-12 months) and whose incision healed in the first stage without infection, got satisfactory range of motion of shoulder joint without painfull and acromion impingement,and UCLA score of shoulder joint function was excellent.[Conclusion]The treatment of impingement syndrome after fracture malunion of greater tuberosity of humerus with the plasty of acromion and greater tuberosity and the reconstruction of rotator cuff with rivets with wire was simple in operation, good in functional recovery and effective in treating.