This study focused on the efficacy of the rational Emotive Behaviour Therapy in ameliorating the incidence of youth restiveness and militancy in the Niger Delta area of Nigeria. This study adopted the quasi-experimental research design. The participants of the study were thirty-five year two students from an intact two hundred level (200L) class as the experimental group and another thirty from year three hundred level students of an intact class, as the control group, from Niger Delta University, Bayelsa State of Nigeria. The treatment in the study has two levels, pre-treatment and posttreatment. Validated and reliable instrument called „Rational Emotive Inventory was used for data collection. This study has one research question and two null hypotheses to guide it. The mean, standard deviation and z-test statistics were used to analyse data in this study. The results of the study revealed a significant effect of the Rational Emotive Therapy on the experimental group, unlike the control group that received an inert treatment. From the study, the use of Rational Emotive Behaviour Therapy in the Universities of the Niger Delia area was recommended to work on the mindset of the student‟s restiveness and militancy in this country.