Objective To explore the relationship among trait self-esteem,self-satisfaction and negative emotion.Methods 363 middle school students were evaluated by questionnaire and scale method.Results There is a significant negative correlation between self-esteem,self-satisfaction and negative emotionality.The models of trait self-esteem,self-satisfaction and negative emotionality fit each other.Conclusion Trait self-esteem,as a mediator,regulates the relationship of negative emotions and self-satisfaction.