Background: Rotator cuff tears are often the cause of incapacitating shoulder pain, reduced shoulder function, and compromised joint mechanics with clinical manifestations of shoulder stiffness, weakness, instability and roughness. The present study was conducted to determineshoulder function after Arthroscopic Rotator Cuff Repair Using University Of California And Los Angeles Score. Materials& Methods: In the present study medical records of all cases of rotator cuff tears who underwent shoulder arthroscopy over a period of 2 years were assessed. 56 patients with full thickness rotator cuff tear confirmed by MRI were included in the study. Patients were assessed as per the UCLA Shoulder scoring system which involves post operative pain, function of shoulder, active forward flexion, strength of flexion and satisfaction of patient.