The first step for humans to learn language is to perceive sounds before they can identify and imitate them and gradually form speech. Only when sounds are heard can language be learned. Parents of children with hearing loss need to provide audiological intervention and rehabilitation measures for your child as early as possible under the guidance of professionals. The earlier the intervention and the more timely the training, the better the language rehabilitation results for children with hearing loss. Before the age of three is a critical period in human growth for language development. Even mild hearing loss during this stage can lead to speech impairment and even delayed intellectual development. For children with hearing impairment, it is important to intervene as early as possible so that their auditory organs can perceive sounds and meet the prerequisites for language learning, and so that their speech and cognitive functions can develop normally. Current interventions are mainly hearing aids and cochlear implants. Hearing aids are devices that amplify sound signals to varying degrees and then deliver them to the ear to compensate for hearing loss; cochlear implants replace diseased inner ear hair cells to produce hearing through direct electrical stimulation of the auditory nerve and are suitable for children with severe sensorineural deafness or above. For children with severe hearing loss, either hearing aids or cochlear implants must be combined with auditory speech and language rehabilitation. “Early detection of deafness, early intervention, and early auditory speech rehabilitation are especially important for children. Parents should not delay their children’s precious and limited time to learn to speak by thinking that their children are still young and should get hearing aids when they are older.