The purpose of this action research was to explore how the researcher integrated picture books relevant to angry emotion into a kindergarten classroom teaching, to find young children's changes of their emotional competence, to learn about the researcher's professional development through this action. Data were collected from documentation of teaching activities, reading 8 picture books relevant to angry emotion, observation and the researcher's reflection etc. The findings indicated three stages of teaching process through the action. It is found that reading a picture book instead of many books and designing relevant activities thoroughly would be beneficial to young children's changes of emotional competence. In addition, the researcher learned how to modify curriculum based on young children's life emotional experience, to regulate self-emotion as well, and different ways to assist children for emotional expression and regulation.