In our clinical work, we find that otitis media is still a common disease among the public. However, when people suffer from otitis media, they do not treat it as actively and regularly as they treat eye diseases, resulting in otitis media being prolonged and turning into chronic otitis media, and sometimes after being temporarily “cured”, because the middle ear cavity is relatively hidden, like a wigwam, it is easy to hide dirt and dirt. If you are not careful and your body’s resistance decreases, the chronic otitis media will have an acute attack. The patient’s history of otitis media can be as short as one year or as long as several decades. After many years of otitis media, the three smallest bones in the middle ear, which are responsible for sound conduction, or the resulting chain, have been destroyed by inflammation, and many inflammatory granules or cholesteatomas have accumulated in the middle ear cavity, so medication is not effective and surgery should be performed. In the past, the traditional surgical treatment was “radical surgery”, which was performed to completely remove the lesion and prevent the onset of otitis media. The surgeon would remove the decayed auditory tuberosity and the diseased inflammatory tissue. This is why patients often feel that their hearing is worse after surgery than before. With the development of medical technology, modified radical treatment and tympanoplasty were developed in order to do the best to improve the patient’s hearing. Although tympanoplasty was able to shape the tympanic membrane and create a smaller volume of the tympanic cavity than the original middle ear cavity, the hearing improvement was not as effective as it could have been. Otolaryngologists subsequently explored the use of various materials to reconstruct the sound-transmitting auditory chain. Some of the materials that have been tried to reconstruct the auditory bone chain are: autologous bone, plastic, Teflon, hydroxyapatite, ceramic, etc. However, for various reasons (time-consuming sculpting, easy resorption of autologous bone, difficulty in shaping, excessive mass, easy dislodgement, etc.), the clinical application is limited and the hearing improvement is still unsatisfactory. Medical workers at home and abroad have researched and manufactured titanium artificial auditory ossicles based on the characteristics that titanium alloy can be osseointegrated with human bone tissue without producing harmful reactions and rarely rejected by the human body. Compared with the original implant material, the titanium bone has its own advantages: good histocompatibility, low rejection, light weight, plasticity, corrosion resistance, and the ability to pass nuclear magnetic examination after implantation. No disadvantages of other implant materials have been identified. The application of titanium artificial auditory tuberosity prosthesis implanted in the middle ear cavity to reconstruct the auditory chain completes the physiological state of the sound transmission function in the human middle ear cavity and improves the hearing level of patients extremely well. Titanium artificial bonelet prosthesis implanted in the middle ear cavity to reconstruct the auditory chain is not only used for patients with otitis media, but also for patients with hearing reconstruction requirements such as dislocation of the auditory chain after trauma, fracture, damage, middle ear deformity, tympanosclerosis, and otosclerosis.