Objectives This study examined the factors influencing the psychological problems experi-enced by suicide survivors to propose support measures for them. Methods One thousand one hundred and twenty suicide survivors who participated in psycho-logical autopsy interviews from 2015 to 2022 were examined to explore the variables affecting psychological problems (sleep problems, depression, alcohol use problems, prolonged grief, and suicidal thoughts). Results The analysis showed that, when controlling for demographic information, the relation-ship with the deceased and experiencing negative changes after the loss significantly influenced the psychological problems of suicide survivors. Conclusion This study is significant in examining various psychological issues of suicide survi-vors. Based on the analysis results, this paper proposes interventions tailored to the demo-graphic characteristics of suicide survivors, enhanced support for those who lost children or spouses, and interventions addressing the negative changes after bereavement.