The ACL is one of the most common knee ligament injury due to it being one of the primary stabilizers and has a big importance in knee biomechanics. ACL injuries are commonly associated with sports injuries and road traffic accidents. The primary aim of ACL reconstruction is to restore the function of the ACL and native kinematics of the knee.1 ACL reconstruction restores the stability of the knee joint and protects the menisci and joint surfaces from further damage.2Hamstrings have been one of the most preferred graft tissues for ACL reconstruction for quite a long time. However, in view of simplicity of the technique the preference of peroneus tendon graft isincreasing. Peroneus longus and Brevis have synergistic action which allows for the harvest of peroneus longus tendon. Some studies suggest that peroneus brevis is a more effective evertor than peroneus longus, justifying harvest of peroneus longus tendon.3Our Studyassessed results of arthroscopic ACL reconstruction with peroneus longus graft in 38 patients using Lysholmscore and donor site morbidity of foot and ankle after tendon harvesting using AOFAS (American orthopaedic foot and ankle score) and FADI (Foot and Ankle Disability Index) score.1 Peroneus longus tendon has shown that it is one of the most promising autograft for ACL reconstruction with advantage of simple harvesting technique, larger graft diameter and minimal graft complications. Keywords: ACL injury, Arthroscopy, ACL reconstruction, Peroneus longus tendon autograft, Lysholm score, Ankle function, AOFAS, FADI.