If a 2-year-old baby does not speak, the first step is to rule out a hearing impairment, and parents are advised to take the child to the hospital for a hearing test. If the hearing is normal, it is important to distinguish whether the non-speaking is due to autism, overall growth retardation, or language delay. For children who do not speak, treatment should be provided to address the cause, including rehabilitation and language training. In addition, in daily life, parents should communicate, communicate, read and play games with their children, all of which can promote language and intellectual development.