Aims: Review the cause of hearing loss in children. Methods: A search has been taken using keywords "causes of hearing loss", "hearing loss", "children" in databases including Pubmed, Science directs, Vietnamese Journal Databases, undergraduate and postgraduate thesises, published and unpublished reports related to the hearing loss. Resutls: Many causes of hearing loss in children have been reviewed, including congenital and acquired causes. Congenital causes include infections during pregnancy, low birth weight, birth asphyxia, severve jaundice in the neonatal period, and using of ototoxic drugs. In the meanwhile acquired causes include infectious diseases in childhood, chronic ear infection, head injury and excessive noise. Conclusion: There are many causes of hearing loss in children including infections during pregancy, infectious diseases in childhood, use of ototoxic drugs, low birth weight, severe jaundice, and excessive noise.