The new Australian cochlear implants, including Contour and Freedom, use curved electrode technology, which has a hard core inside the electrode to ensure smooth insertion of the electrode. The conventional approach is simpler and quicker, but because of the hard core, it can damage the internal structure of the cochlea, potentially affecting the outcome of the cochlear implant and predisposing the patient to valuable residual hearing loss. The key point is to insert the electrode for 1 cm and then secure the core with another forceps so that the stiffer core does not penetrate deeper and the curved electrode follows the mid-axis of the cochlea smoothly into the cochlea, protecting the inner structures and residual hearing. The difficulty with this approach is that the facial saphenous fossa needs to be enlarged and the round window membrane needs to be further exposed, and the best way to enter the cochlea is to grind the bone below the round window membrane. Prof. Park Dai was one of the first doctors in China to use this technique for Australian cochlear implantation. Currently, more than 90% of Australian cochlear implantations performed by Prof. Dai use this approach, and the majority of patients with residual hearing are able to use the preserved residual hearing to help their hearing recovery after surgery. In the case of the Australian cochlear implant, Professor Park uses a minimally invasive 2.5cm incision and a special bone bed grinding method, resulting in a beautiful incision, a flat scalp, and little edema.