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Emotions are born with life; including psychological and physical characters. Emotions have four dimensions: (1) psychological feeling; (2) physical change; (3) cognitive process; and (4) external behavior. Individual emotional development follows one's growth; and there are three aspects' changes: (1) patterns of emotion from basic to complex. (2) causes of emotion from physical stimulus to psychological status. (3) responses of emotion from external behaviors to internal suppresion. Since Darwin (1882) proposed evolution theory of emotion; many psychologists began emotional research and proposed different theories of emotion. These emotional theories included physical theory, behaviorial theory, instinct theory, motivational theory and cognitive theory. Until 1980s, Buck proposed a prime theory, tring to integrate motivation and emotion. Most characters of emotion could been explained in this theory. Most researches' conclusions on adolescent emotions all found the same emotional characteristics as follows: (1) emotional instability (2) intense emotional responses so most adolescence have some emotional disturbance and need some emotional channels very much. According to theories and researches' findings, there are eleven emotions that adolescence often express, these are happiness, annoyance, anger, anxiety, depression, guilt, sadness, disappointment, inferiority, jealousness and fear. This paper intended to understand adolesent emotional condition in Taipei district. Sample included 350 junior high school students, and then beginning emotional measurement and related interview. Finally the research findings were as follows: 1. Patterns of emotion: Six emotions were usually expressed, these are happiness, annoyance, anger, anxiety, depression and sadness, the others were seldom expressed, those are guilt, disappointment, inferiority, jealousness and fear. 2. Causes of emotion: the most important cause was factors of school, especially pressure of schoolwork. the second cause was individual physical and psychological situation, the third was factors of fellowship, and the last was factors of family. 3. Responses of emotion: the adolescent were often direct emotional explosion. Sometimes they would suppress or hide their internal emotions, because they were afraid that the others found their negative emotions. 4. Problems of emotion: because of the accumlation of negative emotions and impropriety of emotional expression, so adding the complexity and severity of emotional problems. Not only affecting their physical and psychological health, but also their personal relationship and individual performance. But the adolescent seldom looked for help from parents or teachers, expecially they very little asked teachers' instruction. The fact is worth thinking.
