Purpose: This study reports the clinical results of the arthroscopic repair of type II SLAP lesion with bio-knotless anchor. Materials and Methods: 25 cases of 25 patients (20 male, 5 female) were included in this study. The average age was 44.5 years old. Preoperative ASES score was average 44. Arthroscopic SLAP repair with 1 or 2 bio-knotless anchors were performed in all cases. The average follow up period was 15 months. Results: The ASES score improved to average 92.7 at last follow up period and 23 cases had full range of motion of the shoulder. 2 case had mild limited range of motion of the shoulder without any problem in normal activity. Conclusion: Arthroscopic repair with bio-knotless anchor in type II SLAP lesion is one of the good methods because of the good clinical results.