The aims of this research are trying to find out when kindergarteners show some behavioral problems, how the teachers manage it and what precaution the teachers can take in advance. Through this research we can hopefully provide some suggestions to help teachers do some guidance and take precaution for the kindergarteners who have behavioral problems. The methods of the research include observing and recording the behavioral problems of kindergarteners and the process of how the teachers manage and prevent it. Also through interviewing teachers to collect their viewpoints and get more concrete understanding of behavioral problems, guidance and strategy of precaution. Finally according to all collected information and analyze the focused issues of our research, the conclusions are "the strategies of guidance used by teachers in kindergarten are multiple", "the chosen strategy is effected by the status of behavioral problems", "the principle of punishment is never deprive of children's learning right", "warning meaning of physical punishment is apt to be useless", "designing interesting curriculum to enhance children's attention", and "the behavioral problems of children can't be controlled and avoided in advance completely". Using all these conclusions, we produce some advice as references for the teachers in kindergartens.