Objective To explore the influence of childhood abuse on suicide possibility in adults. Methods 564 urban adults in Tianjin recruited by stratified random sampling were investigated with Childhood Trauma Questionnaire-Short Form( CTQ-SF) and self-designed suicide attitude scale. Results Score of childhood physical abuse was significantly higher in males than that in females( P 0. 01). Score of childhood emotional neglect was significantly higher in females than that in males( P 0. 05). The frequency of suicide ideation was significantly lower in males than that in females( P 0. 05). Correlation analysis indicated that the suicide ideation was negatively correlated with childhood physical abuse,emotional abuse,sexual abuse and emotional neglect( P 0. 01). The suicide attempt was negatively correlated with childhood physical abuse,emotional abuse and sexual abuse( P 0. 01 or 0. 05). While the suicide acceptability was positively correlated with childhood physical abuse,emotional abuse,sexual abuse and emotional neglect( P 0. 01 or 0. 05). The regression analysis showed that childhood emotional abuse,sexual abuse and emotional neglect were independent influencing factors of suicide ideation( P 0. 05).Conclusion Suicide ideation,suicide attempt and suicide acceptability in adults are associated with the experiences of childhood abuse.