The purpose of this study was to investigate the effect of the Rational Emotional Behavioral Therapy Based Adjustment Training on the adjustment level of undergraduates. Participants involved 30 undergraduates from different cities of Turkey. The data were collected using University Life Scale. This quasi-experimental study was conducted as a psycho-educational group activity in the drama room of the university. The effectiveness of the psycho-education program was examined with experiment-control group, pre-test, post-test and follow-up measures and the program was organized as 12 sessions. Posttest and follow-up results showed that those in the experimental group had a higher adjustment score than the participants in the control group. The results of the research showed that Rational Emotional Behavioral Therapy Based Adjustment Training contributed to the adjustment of first-year students coming from different cities.