Abstract: Suicide is a leading cause of death worldwide. In China, each year about 100000 people died of suicide, and adolescent suicide remains a serious problem. Suicidal ideation is a precondition for implementation of suicidal behavior, and recently more and more researchers begin to pay close attention to this link and its influences. Among them, the early family environment and personality factors make important contributions for predicting adolescent suicide ideation. From the point of development, early family environment determines the development of children's cognitive schema and personality structure, directly or indirectly affects the incidence of adolescent suicidal ideation. Furthermore, according to the theory of the buffering hypothesis of suicide, in addition to risk factors, there are also protective factors, which can effectively adjust the influence of risk factors for suicidal ideation. Search for meaning represents the human motivation and efforts to seek the sense of importance in life, and is regarded as a protective factor for preventing suicidal ideation. Therefore, we hope to explore the influences of childhood psychological abuse and neglect and alexithymia on suicidal ideation, as well as the role of protective factor – search for meaning in it. The study collected self-reported data from 1,074 high school students belonging to three high schools in Heilongjiang, Liaoning and Yunnan. Childhood psychological abuse and neglect was measured by the Psychological Abuse and Neglect Scale consisted of 31 items. Alexithymia was measured by the Toronto Alexithymia Scale consisted of 20 items. Suicidal ideation was measured by the Chinese version of Positive and Negative Suicide Ideation consisted of 14 items. Search for meaning was measured by the Search for Meaning Subscale in The Chinese version of the Sense of Meaning in Life, this subscale is consisted of 5 items. The results indicated that: (1) Childhood psychological abuse and neglect positively predicted suicidal ideation; (2) Childhood psychological abuse and neglect influenced suicidal ideation through the mediating role of alexithymia; (3) Search for meaning moderated the direct path of the mediation model (β = -.16, p < .001). With the increasing of Search for meaning level, the effect of childhood psychological abuse and neglect on suicidal ideation gradually decreases. (4) Search for meaning moderates the second half path of the mediation model, yet the results are gender–dependent in adolescents. Specifically, with the increasing of search for meaning level, the effect of childhood psychological abuse and neglect on adolescent males’ suicidal ideation gradually decreases (β = -.14, p < .01), while the effect of childhood psychological abuse and neglect on adolescent females’ group suicidal ideation did not change significantly (β = -.01, p > .05). These findings reveal the mechanism about how childhood psychological abuse and neglect do impact suicidal ideation, as well as the protective role of search for meaning in the mechanism. Overall, besides of highlighting the tremendous impacts of early family environment and personality factors on adolescents’ suicidal ideation, the study provides a direction for dealing with suicide problem that is encouraging adolescents to explore the meaning of things, as it provides an endogenous motivation to get rid of negative cognition and emotional distress.

Key words: psychological abuse and neglect, suicidal ideation, alexithymia, search for meaning

摘要： 为了探讨童年期心理虐待与忽视与自杀意念之间的关系及其作用机制，本研究采用心理虐待与忽视量表、多伦多述情障碍量表、青少年自杀意念量表及生命意义感量表中的寻求意义感分量表对1074名高中生进行调查。结果表明：（1）童年期心理虐待与忽视对自杀意念有正向预测作用，并且能够通过述情障碍的中介作用影响高中生自杀意念；（2）寻求意义感调节了这一中介过程的直接路径和后半段路径，对后半段路径的调节作用存在性别差异。

关键词: 心理虐待与忽视, 自杀意念, 述情障碍, 寻求意义感