The aim of this article is to present a review of the effect of swimming activity on physical and mental development in infant and early children. The previous researches shown that swimming activity not only provide positive effects on growth, sleep quality and appetite, but also can improve the brain responses to outside stimulation which benefic to the development of brain and neural connection. Via parents give swimming activity together, also benefit to develop personality and social ability in children. Methods and attentions of infant swimming execution are also discussed in this article.