(1) Early examination of the cause of deafness and treatment of the cause should be carried out as much as possible. (2) As long as you have residual hearing, you should get a hearing aid as early as possible to avoid total deafness. (3) If you purchase hearing aids without professional matching, you will not only fail to achieve the practical effect, but also cause hearing damage due to the noise output. To get good hearing. (4) If the hearing aid is ineffective, cochlear implantation can be considered if the economic condition allows. The otologists, hearing aid dispensers, teachers of deaf schools and parents should cooperate with each other to improve the level of deafness prevention and treatment and the actual effect, so that the deaf children can be “deaf but not dumb”, return to the sound world, and recover the ability of language and social interaction.