| Phones change people’s lifestyle. Diversified function of phone and ease of touch-screen operation increase the chances of children using phone. More and more children are called "screen family" "electronic doll", and this phenomenon is developing to a younger age.2-3 years or even earlier, that’s the time child first "touch" the phone screen.Quantity of researches on mobile phone usage of children is less.In order to understand the current situation of preschoolers mobile phone usage, the researcher develops a questionnaire for parents and interview outline separately on preschoolers and kindergarten teachers, as research tools to make an overall grasp of preschoolers’phone usage in N City.By collecting and sorting of parents questionnaires from N kindergarten and X kindergarten in N City, complemented by analyzing preschoolers and teachers interviews content from Class Two in X kindergarten, the researcher presents an overview of preschoolers’mobile phone usage, parents as one of the cases, analysis of main functions phone used and feelings of preschoolers, kindergarten media literacy relevant courses, the impact of mobile phone us, the degree of cooperation between family and the possibility of Kindergarten Media literacy Education and the root causes of children phone usage.For these results,the researcher applies the structure by Bronfenbrenner who use it to analysis the relations between ecological environment and human behavior to resolve impossible influences form micro system,intermediary system,appearance system, macro system,and lasted system.Based on the above analysis, to create a good media environment, and develop the good habit of preschoolers mobile phones and other media usage, the researcher gives some advice to parents, kindergartens, media practitioners and the country.What’s more, each body need to communicate and cooperate with each other well, to jointly boost media literacy promotion of children and the public. |