The ear is a complex sensory organ responsible for hearing and balance. It is housed in the temporal bone and comprises the external, middle, and inner ear. The external and middle ears play an important role in the transmission of sound to the inner ear. The tympanic membrane is situated at the junction of the external and middle ear and plays a vital role in sound transmission. The middle ear cavity is also called the tympanic cavity and contains the three ossicles. The facial nerve runs through the middle ear. The facial recess forms the route of entry into the middle ear during the posterior tympanotomy approach of Cochlear implantation. Understanding the inner ear’s anatomy is essential for successful cochlear implantation. Variations in the size, shape, and orientation of the cochlea can influence how and where the electrode array is inserted. A good understanding of normal anatomy of the inner ear will help understand the cochlear ossifications or malformations during the cochlear implant surgery. Understanding ear anatomy is crucial for diagnosing and treating auditory and balance disorders, and in-depth knowledge is essential for auditory implant surgeries.