The earliest experiences of children can ensure their future success, and parenting is noted to be an influential factor (Bronfenbrenner, 1979; Lamb et al., 2002). Many researchers theorized that parental involvement could encourage children to actively engage and improve their academic achievement in schools (Epstein, 2018). However, less attention was paid to the significance of parental involvement in infants' development. This article explores the role of parental involvement in infants' development by reviewing and discussing abundant relevant studies. This study recommends that parental involvement should be considered as an affluent resource and a useful tool because it could provide rich information about infants' individual needs and positively help infant teachers to improve their instructional skills.