We studied the beneficial effects of psychotherapy program using therapy bugs for children. This study examined the reactions of children before and after the introduction of psychotherapy program using therapy bugs. The participants in this study were 15 children among 3 grade classes from Gummorae elementary school in Siheung City. The experimental group was provided with 10 incidences of the developed psychotherapy program using therapy bugs. The pre and post-tests were analyzed with Wilcoxon matched-pairs signed-ranks test using SPSS/WIN 19.0. The study found that the psychotherapy program using therapy bugs produced some beneficial effects on the experiment group children; a better life-respect, emotion, character and personality (p<0.05). These findings indicate that the developed psychotherapy program using therapy bugs produced beneficial effects on the children.