Five-year-old babies can not speak clearly may be hearing impairment, neurological disorders and other reasons, can use cochlear implants, medication and other aspects of the improvement. 1. Hearing impairment: babies in a noisy environment for a long time, untimely treatment of fever, congenital deafness can cause babies do not speak, parents should take their babies to the doctor in time to do the relevant examination, and cochlear implantation can be used if necessary. 2. Cerebral nerve injury: Cerebral nerve injury may cause cerebral palsy, and in severe cases, there will be mental retardation, hearing loss, epilepsy and other symptoms. Parents should consult a doctor in time for early treatment, and take medication and hyperoxia treatment under the guidance of a doctor, e.g. vitamin B1, methylcobalamin, etc. In daily life, rehabilitation training can be done. In daily life, rehabilitation training can be done to guide the speech. There may be other reasons for the five-year-old baby’s slurred speech, so it is recommended to go to the hospital in time for the relevant examination, and then actively treat the symptoms after clarifying the cause.