The purpose of this study is to investigate the effectiveness of rational-emotive education (REE, a method of preventive RET) with college students on rational thinking, social anxiety and self-acceptance. This study included two groups of subjects. The first one included twenty-six volunteer students from the Department of Educational Psychology of National Taiwan Normal University. The second one was formed by twenty-two volunteer students from eight departments of the same university. Both groups were further divided into Experimental & Control Subgroups. The two experimental groups received two hours of REE training each week for nine weeks, while the two control groups received no treatment. All subjects were given pretest and posttest measures which included the Rational Behavior Scale (RBS), a measure of irrational ideas, and the Social Life Scale, a measure of social anxiety (the social avoidance and distress & fear of negative evaluation) and self-acceptance. The data obtained from this study were analyzed by oneway ANCOVA and a t-test. Results indicated that the difference between the pre & post test of the score on the social avoidance and distress of the Experimental Group formed by Educational Psychology students was statistically signficant. But all other measures showed no significant difference between the experimental and control groups. However the two experimental groups did show some gain on their scores. The implications in further research of this topic were discussed at the final.