Self-harm behavior is frequent among adolescents.And the researches concerning its causes and mechanisms have always been highlighted in abroad, like the new-found phyisiological factors.Self-harm behavior, in previous literature, is closely related to emotion regulation, which emphasizes the ability to control one's behaviors, especially the ability to inhibit impulsive behaviors and/or engage in goal-directed behaviors when experiencing negative emotions.The relation between adolescents' self-harm behaviors and emotion regulation was disc...