Emotions at school received little attention from educational psychologists, except for those who study exam anxiety. This study focuses on the emotions that arise in junior high school students. A sample of 749 students from four schools in Hanoi and Ho Chi Minh City participated in this study. The results of the study show that students experience many different emotions within the school environment. Among the positive emotions, the experience of joy were reported the most often, and among the negative emotions, the experience of anxiety and boredom. In general, positive emotions have been reported more often than negative emotions. Yet, the high prevalence of negative emotions in schools is a remarkable result of this study.