目的：探究与大学生抑郁障碍患者自杀未遂行为相关的童年创伤、家庭功能及社会支持。方法：招募 大学生抑郁障碍患者156例，根据既往是否存在自杀行为分为自杀未遂组（n=78）和非自杀未遂组（n=78）。 采用儿童创伤问卷中文版（CTQ）、家庭功能量表（FAD）、社会支持量表（SSRS）对2组进行评估。结果：与 非自杀未遂组相比，自杀未遂组的情感虐待（P<0.001）、情感忽视（P=0.001）、性虐待（P=0.002）、躯体虐待 （P<0.001）、躯体忽视（P=0.001）因子评分及总分（P<0.001）更高；角色（P=0.039）、情感介入（P=0.023）、家庭 总功能（P=0.010）及总分（P=0.018）更高；主观支持（P=0.007）、支持利用率（P=0.005）因子评分及总分（P= 0.011）更高。情感虐待、性虐待、支持利用率是导致自杀行为发生的独立危险和保护因素。结论：伴自杀未 遂行为的大学生抑郁障碍患者存在更严重的童年创伤、更差的家庭功能以及更少的社会支持。

To explore childhood trauma, family functioning, and social support related to attempted suicide in college students with depression. Methods: A total of 156 college students with depressive disorder were recruited and divided into the attempted suicide group (n=78) and non-attempted suicide group (n= 78) according to previous suicidal behavior. The two groups were evaluated with the Childhood Trauma Questionnaire (CTQ), Family Assessment Device (FAD), and Social Support Rating Scale (SSRS). Results: Compared with the non-attempted suicide group, the attempted suicide group had higher scores of emotional abuse (P<0.001), emotional neglect (P=0.001), sexual abuse (P=0.002), physical abuse (P<0.001), and physical neglect (P=0.001) and a higher total score (P<0.001); role (P=0.039), emotional intervention (P=0.023), total family function (P=0.010), and total (P=0.018) scores were higher; the subjective support (P=0.007), support utilization rate (P=0.005), and total (P=0.011) scores were higher. Emotional abuse, sexual abuse, and support utilization are independent risk and protective factors for suicidal behavior. Conclusion: College students with attempted suicide have more serious childhood trauma, worse family functioning, and less social support.