This study investigated the developmental trajectories of attachment trauma of early adolescents at Community Child Centers to their parents and examined the effect of individual differences in the degree of initial trauma and the change rate of trauma on depression. To this end, this study used a sample of early adolescents at Community Child Centers from the second Korean Children and Youth Panel Survey data(2014~2018) collected by National Youth Policy Institute (NYPI). The analysis results using the Latent Growth Model (LGM) are as follows. First, the average level of attachment trauma in early adolescents decreased over time. The individual differences in the initial level of and the change rate of attachment trauma were statistically significant. Second, the initial attachment trauma in early adolescents significantly predicted their depression. Third, the change rate of trauma significantly predicted depression of 13-year-olds and indirectly predicted depression of 14-year-olds.