The purpose of this study wasis to identify the mediating effects of covert-․overtovret narcissism and the moderated mediation effect of unconditional self-acceptance. To that end, theA total of 600 among 2nd, 3rd, second and third grade of middle school students and first and second1st, 2nd grade of high school students from capital and non-capital areas were surveyed for bullying victimization, narcissism, over-dependency on smartphone, and unconditional self-acceptance scalessclaes. The results were analyzed using SPSS 35.0 and PROCESS. The results of the analysis are as follows. First, because the moderating effect of unconditional self-acceptance between experience of bullying victimization and over-dependency on smartphone was insignificant, the studied assumption of moderatedrd mediating effects was satisfied. Second, the mediated effects of covert-․overtovret narcissism werewas significant. Third, the moderated effect of unconditional self-acceptance was significant in the effect of bullying victimization and covert-․overt narcissism. Fourth, the moderated mediation effect of covert-․overtovret narcissism by unconditional self-acceptance was satisfied on in the relationship between bullying victimization and over-dependency on smartphone. As a results of this study, it was confirmed that the route and the level of pathological narcissism could be reduced by increasing unconditional self-acceptance intervention, and the level of over-dependency on smartphone could be reduced for adolescents with experience of bullying victimization. Finally, bBased on the results, the implications, and limitations of the study and suggestions for future researchfurther study were discussed.