自杀是与人类文明同时出现的一种社会现象。在各个学界对自杀均有不同角度的研究。立足于心理学界对自杀的研究,从理论研究到与自杀密切相关的抑郁的关系进行了探讨和整理。发现理论研究中的假设缺少实证,而自杀的情境性很高,较难把握,其中抑郁与自杀存在较高的相关,可以成为防御的一项指标。 Suicide is a social phenomenon that occurs simultaneously with human civilization. In various academic circles have different perspectives on suicide. Based on the psychology community’s research on suicide, from the theoretical research to the relationship between depression and suicide closely discussed and sorted out. It is found that the hypothesis in theoretical research lacks empirical evidence, and the suicidal situation is very high and difficult to grasp. Depression and suicide are closely related and may become an indicator of defensiveness.