Dental caries is one of the most incidence oral diseases in children. There are many factors can affect caries process .Early Childhood Caries (ECC) is a particular form of dental caries occurring in young children in a distinct pattern.The aim of this study is to review the existing literature about early childhood caries and its prevention.Articles, guidelines, and specific databases such as PubMed, scupos,googlecholar, American Association of Pediatric Dentistry (AAPD), American Association of Pediatrics (AAP) and American Dental Association (ADA) were searched for related topics cited.ECC can be prevented and managed if proper information to parent  in regards to prevention of this condition.