Objective To summarize the experience of anterior cruciate ligament (ACL) reconstruction in teenager patients by bone-tendon-bone method under arthroscope. Methods A total of 23 teenagers with disrupted ACL, who were treated by bone-tendon-bone reconstruction in the Joint Diseases Hospital of New York from 1996 to 2000, were reviewed. The clinical results were measured by using Lysholm and International Knee Documentation Committee (IKDC) scoring systems. Results The patients were followed for 26～63 months, mean 37 months. The mean Lysholm score was 94 points, 21 patients returning to their pre-injury normal knee functions.According to IKDC system, normal knee functions were obtained in 18 cases (78.3%), improved functions in 3 (13.0%), and poor in 2 (8.7%). There were no patients complaining instability in follow-up. Conclusions Bone-tendon-bone reconstruction is also suited to adolescent patients with disrupted ACL. Special attention should be paid to the bone plug and the interface screw fixation in operation.