Objective    To introduce the operation methods of reconstructing anterior cruciate ligament through arthroscope by using six bundles of autoallergic tendons.     Methods    In 32 patients whose anterior cruciate ligaments were broken

the autoallergic tendons were woven to a flexional six-bundle graft before implantation. Twin tunnels in tibia were drilled

the tendon grafts were fixed by screws. All procedures were performed using a standard endoscopic technique. Partial meniscectomy was conducted in 17 patients

large partial meniscectomy in 2

meniscus prosthesis in 2

cartilage chipping in 6 And MCL prosthesis in 3.     Results    Thirty patients were followed up for 7 to 22 months (14 in average). The Lysholm score improved from （62.0±4.5） to （93.2±3.6） (t=2.469

P0.01). KT-1000 examination showed mean motion was (1.3±0.4) mm. MRI callback showed 2 patients had various expanding of the tunnel in tibial tunnel

and 4 anteriomedialis bundle had a dash in fossa intercondylica. No narrowness in joint space was found on X ray film in all cases.     Conclusion    Using autoallergic tendons to weave into a flexional six bundles for transplants and twin tunnels in tibia by using screws pinning in the surfaces through arthroscope has less trauma

good joint stability

and better resumed anatomic construction. Its short-term therapeutic effect is excellent.