Abstract:[Objective] To compare the clinical efficacy of hip arthroscopy versus open surgery in the treatment of femoroacetabular im- pingement (FAI) . [Methods] The literatures of CNKI, Chinese Biomedical literature, Wanfang, VIP, PubMed, Embase, Web of Science and the Cochrane Library database were searched until April 30, 2021. The clinical study on comparison between hip arthroscopy and open sur- gery for FAI was collected. The quality assessment and then data extraction were conducted by two independent reviewers using Cochrane 5.1 risk bias software for the literatures searched, and an meta-analysis was conducted with RevMan 5.3 software by integrating the observa- tional items of each study. [Results] A total of 8 articles were included, involving 862 patients, including 427 patients in the arthroscopy group and 435 patients in the open group. As results of meta-analysis, the arthroscopy group proved significantly superior to the open group in terms of Non- arthritic Hip Score (NAHS) , Hip Outcome Score-Activities of Daily Living (HOS-ADL) , and complication rate at 3 months postoperatively (P<0.05) . However, there were no significant differences in NAHS score, HOS-ADL score, Modified Harris Hip Score (mHHS) , Hip Outcome Score-Sport Specific Subscale (HOS-SSS) , femoral head-neck offset (HNO) and α angle between the two groups at 12 months postoperatively (P>0.05) . [Conclusion] Both hip arthroscopy and open surgery do achieve satisfactory clinical out- comes for FAI, by comparison, hip arthroscopy takes obvious advantages over open surgery in the incidence of complications and initial treatment efficacy in term of NAHS and HOS-ADL scores.