This study examined the effect of a psychoeducational intervention on displaced aggression with a university student sample. We predicted that separating the activation of the aggressive network evoked by provocation from a trigger would decrease displaced aggression. We conducted diary study consisted of psychoeducation about empirical studies and the theoretical model regarding triggered displaced aggression, and the efficiency of separating the activation of the aggressive network and the trigger, and asked participants to engage in distraction when they experienced a provoking event. As expected, aggression decreased through psychoeducational intervention and this decrease was maintained at the same level one week later.