The purpose of this study was to analyze the research trends on using smart devices for children. As a research method, 46 Korean research articles published from 2009 to 2014 were analyzed according to the following criteria: research purpose, theme, research subject, scope of research, age of children, and research's perspectives on side-effects of smart devices. The findings were as follows: First, studies focusing on the current status and improvements plans were mainly conducted since 2012 from the perspective of its research purpose while studies introducing theory was largely insufficient. Second, in terms of research issues, academic researches on the smart media/system and its over-use/addiction were also dominated. Third, the target audiences were getting younger including 0 to 7 years old. While reflecting these trends, the number of research articles increased since 2012. Fourth, most researches done so far focused on home and child care institutes. In the near future, more researches should be expanded the scope of the academic field with inviting a close relationship with general societal issues. Fifth, in the aspect of research methodology, quantitative research method appeared superior even the amount of the mixed researches has been increased. Lastly, there was a clear gap and distinction between the designers and educators’ perspectives on smart over-usage and addiction. The former almost ignored the issue, however, the latter were very sensitive to it. On a basis of these findings, there were several recommendations to bridge the gap between them and to harmonize the concept of addiction to the smart system.