Ankle sprains are the most common lower extremity injuries associated with sports activity. Although ligament repair techniques are popular, reconstruction methods using free tendons are considered when the ligament remnant is insufficiently strong, when high-demand athletes sustain repeat ankle sprains, or in revision cases after repair. Recently, some arthroscopic reconstruction techniques have been reported. The distal fibular end is thin; therefore, surgeons must be careful while drilling the fibular tunnel. This report indicates the safe creation method of an anatomical fibular tunnel during anatomical arthroscopic reconstruction of the anterior talofibular ligament and calcaneofibular ligament. This also provides a stronger reconstruction using a 2-strand tendon graft for the anterior talofibular ligament substitute, which is thought to have less risk for postoperative graft failure.