Abstract:[Objective] To analyze the clinical outcome of total hip arthroplasty (THA) through direct anterior approach (DAA) for femo-ral neck fractures, and to explore its learning curve. [Methods] A retrospective analysis was performed on 58 patients who received DAATHAfor femoral neck fracture in our hospital from January 2020 to December 2021. The learning curve was analyzed by cumulative sum(CUSUM) analysis, and the clinical data of patients at different learning stages were compared. [Results] According to CUSUM learningcurve, the initial stage was sequence of 1~22 cases, the growth stage was sequence 23~32 cases, and the maturity stage was sequence 33~58cases. With the accumulation of operation cases, operation time [(165.1±16.5) min, (139.8±7.2) min, (120.4±8.2) min, P＜0.001], intraopera-tive blood loss [(187.6±16.4) ml, (147.3±19.0) ml, (118.9±11.4) ml, P＜0.001] and hospital stay [(8.6±1.7) days, (6.5±0.9) days, (5.0±0.7)days, P＜0.001] were significantly reduced, the complications were significantly decreased (P＜0.05), and the imaging significant prostheticposition was significantly improved (P＜0.05). Harris scores in the mature stage were significantly better than those in the initial stage andgrowth stage 1 and 3 months after surgery (P＜0.05), but there was no significant difference in Harris scores among the three groups 6 monthsafter surgery (P＞0.05). [Conclusion] DAA-THA has the advantages of less intraoperative injury and faster recovery, but it has a long learn-ing curve, requiring 23~32 cases to reach technical maturity.