This study aimed to examine the dual mediating effects of rejection sensitivity and anger rumination in the relationship between childhood trauma and binge eating behavior among female college students. A total of 422 female college students enrolled in universities located in both metropolitan and non-metropolitan areas participated in an online survey. The collected data were analyzed using SPSS 26.0 and PROCESS Macro 4.2. The main findings were as follows. First, rejection sensitivity partially mediated the relationship between childhood trauma and binge eating behavior. Second, anger rumination also partially mediated this relationship. Third, rejection sensitivity and anger rumination sequentially mediated the relationship between childhood trauma and binge eating behavior, indicating a significant dual mediation effect. Based on these findings, the study provides a more detailed understanding of the environmental and psychological pathways that lead to binge eating behavior in female college students and discusses practical implications for counseling interventions designed to address such maladaptive eating behaviors.
