This research aims to reconsider the states of classroom which has been regarded as the one of the important place for students but ignored for the topic of research because it is too friendly and conventional to everybody. We studied the relationships between the psychological states of students and the location of seating in the classroom to enlighten the psychological role of the classroom which is accepted for the standard without criticism for a long time. Especially, we compared the location of students in the classroom to the psychological states of students concerning the suicide such as suicidal thinking and attitudes, youth problem behaviors, the methods to deal with the problem and so on.