Abstract: Teenagers are at a crucial period of physical and mental development,which is also called by psychologists the "crisis period".In the period,the psychology of adolescent is easily distorted,and the improper correction will cause a serious psychological disorder.With the escalating crime and self-destruction among the young people,adolescent psychological health has become the focus concerned by the whole society.The paper mainly analyzes the common psychological problems of adolescent and the causes,then pu...