Minimally invasive cochlear implantation involves small incision technique, optimized flap design, bone groove grinding and implant placement, and improved cochlear electrode implantation technique, etc.; it helps to protect the normal structure and function of the patient, helps to protect residual hearing, shortens the recovery time of the patient, reduces surgical complications, guarantees the implanted device to work normally for a long period of time and preserves the chance of secondary implantation, which is also important for postoperative rehabilitation, improving the effectiveness of cochlear implants and protecting the auditory nerve. It is also important for postoperative rehabilitation, improvement of cochlear implant performance and protection of the auditory nerve. Advantages of cochlear implantation (compared with traditional cochlear implantation): 1. Small incision behind the ear, more stable implant placement, fewer flap-related complications; 2. Round window pathway, no need for cochlear perforation, which can avoid re-injury to one’s own hearing caused by the noise of the drill, and can help to improve the patient’s ability to discriminate in noise environments as well as better appreciation of music; electrodes enter the tympanic step directly from the round window, which makes the implantation more accurate; 3, Soft surgical implantation, less damage to the cochlear structure, maximize the protection of the remaining normal structure in the cochlea; 4. Make it possible for the patients to enjoy the future technology, such as drug therapy, gene therapy, hair cell regeneration, etc.; 5. Less bleeding during the operation, less pain after the operation, faster recovery, less scar, etc. Our cochlear implantation center has achieved good results since it started minimally invasive cochlear implantation.