Abstract:[Objective] To compare the clinical efficacy in short term of arthroscopic repairing versus conservative treatment for sports rotator cuff injury. [Methods] From May 2016 to November 2020, 100 patients with sports rotator cuff injury were treated in our depart- ment. According to the results of doctor-patient communication before treatment, 50 patients were treated with the surgery, while the other 50 patients underwent the conservative treatment. The clinical efficacy was compared between the two groups. [Results] The patients in both groups were successfully treated without serious complications. The QOL, UCLA, and Constant-Murley scores, as well as abductionuplifting range of motion (ROM) and external rotation ROM increased significantly over time in both groups (P<0.05) . Although there were no statistically significant differences between the two group in terms of QOL, UCLA and Constant-Murley scores, as well as abduction up- lifting ROM and external rotation ROM before operation (P<0.05) , the surgical group proved significantly superior to the conservative group in abovementioned items at 8 weeks, 3 months and 6 months postoperatively (P<0.05) . [Conclusion] Compared with conservative treatment, arthroscopic repairing is an effective treatment for sports rotator cuff injuries, does relieve pain and improve shoulder function and quality of life effectively.