The study investigated recognition of kindergarten teacher about problematic behavior of infants, play therapy, and play therapy education with kindergarten teachers. First, for recognition of kindergarten teacher about problematic behavior of early childhood, it was found that most of kindergarten teachers have ever met difficult 2~ 3 infants in caring in a class, such infant's problematic behavior type were aggressive and distracted behaviors and cannot interact with peers. Next, for recognition of kindergarten teacher about play therapy, most of teachers knew through lecture in college or people around them that there is play therapy that can help difficult early childhood in caring. Most of teachers recognized effect of paly therapy in treating problematic behavior of early childhood. Fields which can be helped through play therapy were self-control and development of initiative followed by development of sociality, reduction of negative experience and emotion. Finally, 96.2% of all the respondents recognized that professional education is necessary in conducting play therapy. Through such results, it was identified that to solve maladjustment and problematic behavior in development of early childhood, educational program for play therapy for teachers is necessary.