Rotator cuff tears are common amongst the elderly and athletes. Aim of the work : To assess the functional outcome of arthroscopic rotator cuff repair and mini-open rotator cuff repair. Correlation of any improvement of functional scores with all possible variables to predict factors affecting outcome. A systematic review was conducted in adult patients with rotator cuff tears other than massive or irreparable tears to compare clinical outcomes of patients undergoing all-arthroscopic versus mini-open rotator cuff repair. The review was conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. 15 studies evaluating arthroscopy and mini-open repair for rotator-cuff repair were included in the review . The included evidence was based on comparative studies assessing clinical outcomes or providing sub-group data on outcomes of interest in patients with rotator-cuff tear. ASES was used in 7 studies and showed to be increased post operation in both procedures the mean preoperative score was 36.1 , 34.2  in mini open and arthroscopic groups respectively which increased to 90.7, 88.89 post operative respectively  .Pain was detected by VAS score in 9 studies and mean preoperative score was 6, 6.5 in mini open and arthroscopic groups respectively which decreased to 3, 2.6 post operative respectively. Arthroscopy repair and mini-open repair are associated with similar clinical outcomes. The choice of the operating technique depends upon the tear size and surgeon's preference.