The purpose of this study is to determine whether self-esteem and depression have a double mediating effect in the process of experiencing discrimination victimization affecting suicidal thoughts. The subjects of the study were 6,120 middle and high school students from the ‘2022 Children and Youth Human Rights Survey’ data of the Korea Youth Policy Institute, and the double mediation effect was verified using the Macro Process for SPSS program. The research results are as follows. First, the experience of discrimination was found to have a positive effect on suicidal thoughts. Second, the experience of discrimination was found to have a negative effect on self-esteem. Third, the experience of discrimination was found to have a positive effect on depression, and self-esteem was found to have a negative effect on depression. Fourth, experiences of discrimination and depression were found to have a positive effect on suicidal thoughts, and self-esteem was found to have a negative effect. Fifth, the results of the analysis of the direct and total effects of the experience of discrimination victimization on the mediators, self-esteem and depression, and the dependent variable suicidal ideation were both significant, and the double mediating effect was verified, so that the higher the experience of discrimination victimization, the higher the self-esteem. It was found that as the level decreases and the level of self-esteem decreases, depression increases, which leads to an increase in the level of suicidal thoughts. Based on these results, various education, counseling, and program activation measures were proposed to reduce adolescents' suicidal thoughts.