Abstract [Objective]To compare the clinical efficacy of anchor group and tunnel group fixed for reconstruction of medial patellofemoral ligament in the treatment of recurrent patellar dislocation.[Methods] 42 cases of recurrent patellar dislocation in our department in recent 5 years were retrospectively analyzed, including 23 cases in the anchor group and 19 cases in the tunnel group. The perioperative period, follow-up and imaging data of the two groups were compared.[Results]Both groups successfully completed the operation without serious complications. The operation time of the anchor group was shorter than that of the tunnel group, and there was no significant difference between the two groups in total incision length, intraoperative blood loss, intraoperative complications, incision healing level, early activity time in the fields and hospitalization time (P>0.05).Both groups were followed up for more than 12 months, no patellar dislocation occurred again in both groups, and the time to resume full weight-bearing activities in the anchor group was significantly earlier than that in the tunnel group (P<0.05).One male patient in tunnel group suffered patellar fracture 3 months after operation, but there was no significant difference in the number of complications between the two groups (P>0.05). Compared with pre-operation, the VAS scores of the two groups decreased significantly (P<0.05), while Kujala, Lysholm and ROM scores increased significantly (P<0.05). There was no significant difference in the above indexes between the two groups before or after operation (P>0.05). In terms of imaging, there was no significant difference in patellar tilt angle and patellar displacement between the two groups before or after operation (P>0.05), but the postoperative situation of each group was better than that before operation (P<0.05).[Conclusion]Both groups achieved good clinical effects, but compared with tunnel group, the anchor group has the advantages of shorter operation time, mild complications and faster recovery, which is more suitable for popularization.